<para>Added compound control types and &VIDIOC-QUERY-EXT-CTRL;.
</para>
</listitem>
+ </orderedlist>
+ </section>
+
+ <section>
<title>V4L2 in Linux 3.18</title>
<orderedlist>
<listitem>
F: drivers/crypto/nx/
IBM Power 842 compression accelerator
-M: Nathan Fontenot <nfont@linux.vnet.ibm.com>
+M: Dan Streetman <ddstreet@us.ibm.com>
S: Supported
F: drivers/crypto/nx/nx-842.c
F: include/linux/nx842.h
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
+#include <linux/compiler.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/dma-mapping.h>
* GCC 3.2.x: miscompiles NEW_AUX_ENT in fs/binfmt_elf.c
* (http://gcc.gnu.org/PR8896) and incorrect structure
* initialisation in fs/jffs2/erase.c
+ * GCC 4.8.0-4.8.2: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58854
+ * miscompiles find_get_entry(), and can result in EXT3 and EXT4
+ * filesystem corruption (possibly other FS too).
*/
+#ifdef __GNUC__
#if (__GNUC__ == 3 && __GNUC_MINOR__ < 3)
#error Your compiler is too buggy; it is known to miscompile kernels.
-#error Known good compilers: 3.3
+#error Known good compilers: 3.3, 4.x
+#endif
+#if GCC_VERSION >= 40800 && GCC_VERSION < 40803
+#error Your compiler is too buggy; it is known to miscompile kernels
+#error and result in filesystem corruption and oopses.
+#endif
#endif
int main(void)
#ifdef CONFIG_MODULES
" modules : 0x%08lx - 0x%08lx (%4ld MB)\n"
#endif
- " .text : 0x%p" " - 0x%p" " (%4d kB)\n"
- " .init : 0x%p" " - 0x%p" " (%4d kB)\n"
- " .data : 0x%p" " - 0x%p" " (%4d kB)\n"
- " .bss : 0x%p" " - 0x%p" " (%4d kB)\n",
+ " .text : 0x%p" " - 0x%p" " (%4td kB)\n"
+ " .init : 0x%p" " - 0x%p" " (%4td kB)\n"
+ " .data : 0x%p" " - 0x%p" " (%4td kB)\n"
+ " .bss : 0x%p" " - 0x%p" " (%4td kB)\n",
MLK(UL(CONFIG_VECTORS_BASE), UL(CONFIG_VECTORS_BASE) +
(PAGE_SIZE)),
void flush_dcache_icache_hugepage(struct page *page);
-#if defined(CONFIG_PPC_MM_SLICES) || defined(CONFIG_PPC_SUBPAGE_PROT)
+#if defined(CONFIG_PPC_MM_SLICES)
int is_hugepage_only_range(struct mm_struct *mm, unsigned long addr,
unsigned long len);
#else
SYSCALL_SPU(seccomp)
SYSCALL_SPU(getrandom)
SYSCALL_SPU(memfd_create)
+SYSCALL_SPU(bpf)
#include <uapi/asm/unistd.h>
-#define __NR_syscalls 361
+#define __NR_syscalls 362
#define __NR__exit __NR_exit
#define NR_syscalls __NR_syscalls
#define __NR_seccomp 358
#define __NR_getrandom 359
#define __NR_memfd_create 360
+#define __NR_bpf 361
#endif /* _UAPI_ASM_POWERPC_UNISTD_H_ */
u64 vsid;
int psize, ssize;
- slb->esid = (ea & ESID_MASK) | SLB_ESID_V;
-
switch (REGION_ID(ea)) {
case USER_REGION_ID:
pr_devel("%s: 0x%llx -- USER_REGION_ID\n", __func__, ea);
vsid |= mmu_psize_defs[psize].sllp |
((ssize == MMU_SEGSIZE_1T) ? SLB_VSID_B_1T : 0);
+ slb->esid = (ea & (ssize == MMU_SEGSIZE_1T ? ESID_MASK_1T : ESID_MASK)) | SLB_ESID_V;
slb->vsid = vsid;
return 0;
cpu = smp_processor_id();
for (update = data; update; update = update->next) {
+ int new_nid = update->new_nid;
if (cpu != update->cpu)
continue;
- unmap_cpu_from_node(update->cpu);
- map_cpu_to_node(update->cpu, update->new_nid);
+ unmap_cpu_from_node(cpu);
+ map_cpu_to_node(cpu, new_nid);
+ set_cpu_numa_node(cpu, new_nid);
+ set_cpu_numa_mem(cpu, local_memory_node(new_nid));
vdso_getcpu_init();
}
slice_convert(mm, mask, psize);
}
+#ifdef CONFIG_HUGETLB_PAGE
/*
* is_hugepage_only_range() is used by generic code to verify whether
* a normal mmap mapping (non hugetlbfs) is valid on a given area.
#endif
return !slice_check_fit(mask, available);
}
-
+#endif
{
struct lpc_debugfs_entry *lpc = filp->private_data;
u32 data, pos, len, todo;
- __be32 bedata;
int rc;
if (!access_ok(VERIFY_WRITE, ubuf, count))
len = 2;
}
rc = opal_lpc_read(opal_lpc_chip_id, lpc->lpc_type, pos,
- &bedata, len);
+ &data, len);
if (rc)
return -ENXIO;
- data = be32_to_cpu(bedata);
switch(len) {
case 4:
rc = __put_user((u32)data, (u32 __user *)ubuf);
*/
#define OPAL_CALL(name, token) \
- _GLOBAL(name); \
+ _GLOBAL_TOC(name); \
mflr r0; \
std r0,16(r1); \
li r0,token; \
};
static struct resource scif0_resources[] = {
- DEFINE_RES_MEM(0xfffffe80, 0x100),
+ DEFINE_RES_MEM(0xfffffe80, 0x10),
DEFINE_RES_IRQ(evt2irq(0x4e0)),
};
};
static struct resource scif1_resources[] = {
- DEFINE_RES_MEM(0xa4000150, 0x100),
+ DEFINE_RES_MEM(0xa4000150, 0x10),
DEFINE_RES_IRQ(evt2irq(0x900)),
};
};
static struct resource scif2_resources[] = {
- DEFINE_RES_MEM(0xa4000140, 0x100),
+ DEFINE_RES_MEM(0xa4000140, 0x10),
DEFINE_RES_IRQ(evt2irq(0x880)),
};
{
bool no_sg_merge = !!test_bit(QUEUE_FLAG_NO_SG_MERGE,
&q->queue_flags);
+ bool merge_not_need = bio->bi_vcnt < queue_max_segments(q);
if (no_sg_merge && !bio_flagged(bio, BIO_CLONED) &&
- bio->bi_vcnt < queue_max_segments(q))
+ merge_not_need)
bio->bi_phys_segments = bio->bi_vcnt;
else {
struct bio *nxt = bio->bi_next;
bio->bi_next = NULL;
bio->bi_phys_segments = __blk_recalc_rq_segments(q, bio,
- no_sg_merge);
+ no_sg_merge && merge_not_need);
bio->bi_next = nxt;
}
}
err = e->ops.elevator_init_fn(q, e);
- return 0;
+ if (err)
+ elevator_put(e);
+ return err;
}
EXPORT_SYMBOL(elevator_init);
if (bytes && blk_rq_map_kern(q, rq, buffer, bytes, __GFP_WAIT)) {
err = DRIVER_ERROR << 24;
- goto out;
+ goto error;
}
memset(sense, 0, sizeof(sense));
blk_execute_rq(q, disk, rq, 0);
-out:
err = rq->errors & 0xff; /* only 8 bit SCSI status */
if (err) {
if (rq->sense_len && rq->sense) {
#undef pr_fmt
#define pr_fmt(fmt) fmt
-static void rmem_cma_device_init(struct reserved_mem *rmem, struct device *dev)
+static int rmem_cma_device_init(struct reserved_mem *rmem, struct device *dev)
{
dev_set_cma_area(dev, rmem->priv);
+ return 0;
}
static void rmem_cma_device_release(struct reserved_mem *rmem,
ret = setup_commands(nq);
if (ret)
- goto err_queue;
+ return ret;
nullb->nr_queues++;
}
-
return 0;
-err_queue:
- cleanup_queues(nullb);
- return ret;
}
static int null_add_dev(void)
goto out_cleanup_queues;
}
blk_queue_make_request(nullb->q, null_queue_bio);
- init_driver_queues(nullb);
+ rv = init_driver_queues(nullb);
+ if (rv)
+ goto out_cleanup_blk_queue;
} else {
nullb->q = blk_init_queue_node(null_request_fn, &nullb->lock, home_node);
if (!nullb->q) {
}
blk_queue_prep_rq(nullb->q, null_rq_prep_fn);
blk_queue_softirq_done(nullb->q, null_softirq_done_fn);
- init_driver_queues(nullb);
+ rv = init_driver_queues(nullb);
+ if (rv)
+ goto out_cleanup_blk_queue;
}
nullb->q->queuedata = nullb;
{
u64 val = 0;
struct zram *zram = dev_to_zram(dev);
- struct zram_meta *meta = zram->meta;
down_read(&zram->init_lock);
- if (init_done(zram))
+ if (init_done(zram)) {
+ struct zram_meta *meta = zram->meta;
val = zs_get_total_pages(meta->mem_pool);
+ }
up_read(&zram->init_lock);
return scnprintf(buf, PAGE_SIZE, "%llu\n", val << PAGE_SHIFT);
int err;
unsigned long val;
struct zram *zram = dev_to_zram(dev);
- struct zram_meta *meta = zram->meta;
err = kstrtoul(buf, 10, &val);
if (err || val != 0)
return -EINVAL;
down_read(&zram->init_lock);
- if (init_done(zram))
+ if (init_done(zram)) {
+ struct zram_meta *meta = zram->meta;
atomic_long_set(&zram->stats.max_used_pages,
zs_get_total_pages(meta->mem_pool));
+ }
up_read(&zram->init_lock);
return len;
if (apiexcp & UECC_EXCP_DETECTED) {
cpc925_mc_printk(mci, KERN_INFO, "DRAM UECC Fault\n");
- edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 1,
+ edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 1,
pfn, offset, 0,
csrow, -1, -1,
mci->ctl_name, "");
static void process_ce_no_info(struct mem_ctl_info *mci)
{
edac_dbg(3, "\n");
- edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 1, 0, 0, 0, -1, -1, -1,
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 1, 0, 0, 0, -1, -1, -1,
"e7xxx CE log register overflow", "");
}
-1, -1,
"i3000 UE", "");
} else if (log & I3200_ECCERRLOG_CE) {
- edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 1,
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 1,
0, 0, eccerrlog_syndrome(log),
eccerrlog_row(channel, log),
-1, -1,
- "i3000 UE", "");
+ "i3000 CE", "");
}
}
}
dimm->location[0], dimm->location[1], -1,
"i82860 UE", "");
else
- edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 1,
+ edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 1,
info->eap, 0, info->derrsyn,
dimm->location[0], dimm->location[1], -1,
"i82860 CE", "");
[KEY_BRIGHTNESS_MIN] = "BrightnessMin",
[KEY_BRIGHTNESS_MAX] = "BrightnessMax",
[KEY_BRIGHTNESS_AUTO] = "BrightnessAuto",
+ [KEY_KBDINPUTASSIST_PREV] = "KbdInputAssistPrev",
+ [KEY_KBDINPUTASSIST_NEXT] = "KbdInputAssistNext",
+ [KEY_KBDINPUTASSIST_PREVGROUP] = "KbdInputAssistPrevGroup",
+ [KEY_KBDINPUTASSIST_NEXTGROUP] = "KbdInputAssistNextGroup",
+ [KEY_KBDINPUTASSIST_ACCEPT] = "KbdInputAssistAccept",
+ [KEY_KBDINPUTASSIST_CANCEL] = "KbdInputAssistCancel",
};
static const char *relatives[REL_MAX + 1] = {
#define USB_VENDOR_ID_ELAN 0x04f3
#define USB_DEVICE_ID_ELAN_TOUCHSCREEN 0x0089
+#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_009B 0x009b
+#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_016F 0x016f
#define USB_VENDOR_ID_ELECOM 0x056e
#define USB_DEVICE_ID_ELECOM_BM084 0x0061
break;
case 0x5b: /* TransducerSerialNumber */
- set_bit(MSC_SERIAL, input->mscbit);
+ usage->type = EV_MSC;
+ usage->code = MSC_SERIAL;
+ bit = input->mscbit;
+ max = MSC_MAX;
break;
default: goto unknown;
case 0x28b: map_key_clear(KEY_FORWARDMAIL); break;
case 0x28c: map_key_clear(KEY_SEND); break;
+ case 0x2c7: map_key_clear(KEY_KBDINPUTASSIST_PREV); break;
+ case 0x2c8: map_key_clear(KEY_KBDINPUTASSIST_NEXT); break;
+ case 0x2c9: map_key_clear(KEY_KBDINPUTASSIST_PREVGROUP); break;
+ case 0x2ca: map_key_clear(KEY_KBDINPUTASSIST_NEXTGROUP); break;
+ case 0x2cb: map_key_clear(KEY_KBDINPUTASSIST_ACCEPT); break;
+ case 0x2cc: map_key_clear(KEY_KBDINPUTASSIST_CANCEL); break;
+
default: goto ignore;
}
break;
{ USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_AXIS_295, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN, HID_QUIRK_ALWAYS_POLL },
+ { USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_009B, HID_QUIRK_ALWAYS_POLL },
+ { USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_016F, HID_QUIRK_ALWAYS_POLL },
{ USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_FORMOSA, USB_DEVICE_ID_FORMOSA_IR_RECEIVER, HID_QUIRK_NO_INIT_REPORTS },
{ USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28, HID_QUIRK_NOGET },
goto out;
}
+ /* create a nice device name */
+ sprintf(dev->name, "saa7146 (%d)", saa7146_num);
+
DEB_EE("pci:%p\n", pci);
err = pci_enable_device(pci);
/* the rest + print status message */
- /* create a nice device name */
- sprintf(dev->name, "saa7146 (%d)", saa7146_num);
-
pr_info("found saa7146 @ mem %p (revision %d, irq %d) (0x%04x,0x%04x)\n",
dev->mem, dev->revision, pci->irq,
pci->subsystem_vendor, pci->subsystem_device);
break;
/* attach tuner */
+ memset(&m88ts2022_config, 0, sizeof(m88ts2022_config));
m88ts2022_config.fe = fe0->dvb.frontend;
m88ts2022_config.clock = 27000000;
memset(&info, 0, sizeof(struct i2c_board_info));
/* port c - terrestrial/cable */
case 2:
/* attach frontend */
+ memset(&si2168_config, 0, sizeof(si2168_config));
si2168_config.i2c_adapter = &adapter;
si2168_config.fe = &fe0->dvb.frontend;
si2168_config.ts_mode = SI2168_TS_SERIAL;
port->i2c_client_demod = client_demod;
/* attach tuner */
+ memset(&si2157_config, 0, sizeof(si2157_config));
si2157_config.fe = fe0->dvb.frontend;
memset(&info, 0, sizeof(struct i2c_board_info));
strlcpy(info.type, "si2157", I2C_NAME_SIZE);
config VIDEO_TW68
tristate "Techwell tw68x Video For Linux"
depends on VIDEO_DEV && PCI && VIDEO_V4L2
- select I2C_ALGOBIT
select VIDEOBUF2_DMA_SG
---help---
Support for Techwell tw68xx based frame grabber boards.
/* get irq */
err = devm_request_irq(&pci_dev->dev, pci_dev->irq, tw68_irq,
- IRQF_SHARED | IRQF_DISABLED, dev->name, dev);
+ IRQF_SHARED, dev->name, dev);
if (err < 0) {
pr_err("%s: can't get IRQ %d\n",
dev->name, pci_dev->irq);
config VIDEO_SAMSUNG_S5P_G2D
tristate "Samsung S5P and EXYNOS4 G2D 2d graphics accelerator driver"
depends on VIDEO_DEV && VIDEO_V4L2
- depends on PLAT_S5P || ARCH_EXYNOS || COMPILE_TEST
+ depends on ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
depends on HAS_DMA
select VIDEOBUF2_DMA_CONTIG
select V4L2_MEM2MEM_DEV
config VIDEO_SAMSUNG_S5P_JPEG
tristate "Samsung S5P/Exynos3250/Exynos4 JPEG codec driver"
depends on VIDEO_DEV && VIDEO_V4L2
- depends on PLAT_S5P || ARCH_EXYNOS || COMPILE_TEST
+ depends on ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
depends on HAS_DMA
select VIDEOBUF2_DMA_CONTIG
select V4L2_MEM2MEM_DEV
config VIDEO_SAMSUNG_S5P_MFC
tristate "Samsung S5P MFC Video Codec"
depends on VIDEO_DEV && VIDEO_V4L2
- depends on PLAT_S5P || ARCH_EXYNOS || COMPILE_TEST
+ depends on ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
depends on HAS_DMA
select VIDEOBUF2_DMA_CONTIG
default n
config VIDEO_SAMSUNG_EXYNOS4_IS
bool "Samsung S5P/EXYNOS4 SoC series Camera Subsystem driver"
depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
- depends on (PLAT_S5P || ARCH_EXYNOS || COMPILE_TEST)
+ depends on ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
depends on OF && COMMON_CLK
help
Say Y here to enable camera host interface devices for
return -ENXIO;
}
+#if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP)
static int fimc_m2m_suspend(struct fimc_dev *fimc)
{
unsigned long flags;
return 0;
}
+#endif /* CONFIG_PM_RUNTIME || CONFIG_PM_SLEEP */
static const struct of_device_id fimc_of_match[];
unsigned long buffer, unsigned long size,
struct s5p_jpeg_ctx *ctx)
{
- int c, components, notfound;
+ int c, components = 0, notfound;
unsigned int height, width, word, subsampling = 0;
long length;
struct s5p_jpeg_buffer jpeg_buffer;
return 0;
}
+#if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP)
static int s5p_jpeg_runtime_suspend(struct device *dev)
{
struct s5p_jpeg *jpeg = dev_get_drvdata(dev);
return 0;
}
+#endif /* CONFIG_PM_RUNTIME || CONFIG_PM_SLEEP */
+#ifdef CONFIG_PM_SLEEP
static int s5p_jpeg_suspend(struct device *dev)
{
if (pm_runtime_suspended(dev))
return s5p_jpeg_runtime_resume(dev);
}
+#endif
static const struct dev_pm_ops s5p_jpeg_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(s5p_jpeg_suspend, s5p_jpeg_resume)
config VIDEO_SAMSUNG_S5P_TV
bool "Samsung TV driver for S5P platform"
depends on PM_RUNTIME
- depends on PLAT_S5P || ARCH_EXYNOS || COMPILE_TEST
+ depends on ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
default n
---help---
Say Y here to enable selecting the TV output devices for
config VIDEO_VIVID
tristate "Virtual Video Test Driver"
- depends on VIDEO_DEV && VIDEO_V4L2 && !SPARC32 && !SPARC64
+ depends on VIDEO_DEV && VIDEO_V4L2 && !SPARC32 && !SPARC64 && FB
select FONT_SUPPORT
select FONT_8x16
+ select FB_CFB_FILLRECT
+ select FB_CFB_COPYAREA
+ select FB_CFB_IMAGEBLIT
select VIDEOBUF2_VMALLOC
default n
---help---
tpg->black_line[plane] = vzalloc(max_w * pixelsz);
if (!tpg->black_line[plane])
return -ENOMEM;
- tpg->random_line[plane] = vzalloc(max_w * pixelsz);
+ tpg->random_line[plane] = vzalloc(max_w * 2 * pixelsz);
if (!tpg->random_line[plane])
return -ENOMEM;
}
fmerr("Unable to read firmware(%s) content\n", fw_name);
return ret;
}
- fmdbg("Firmware(%s) length : %d bytes\n", fw_name, fw_entry->size);
+ fmdbg("Firmware(%s) length : %zu bytes\n", fw_name, fw_entry->size);
fw_data = (void *)fw_entry->data;
fw_len = fw_entry->size;
if (priv) {
cancel_delayed_work(&priv->timer_sleep);
- hybrid_tuner_release_state(priv);
if (priv->firmware)
release_firmware(priv->firmware);
+ hybrid_tuner_release_state(priv);
}
mutex_unlock(&xc5000_list_mutex);
return af9035_wr_regs(d, reg, &val, 1);
}
-static int af9035_add_i2c_dev(struct dvb_usb_device *d, char *type, u8 addr,
- void *platform_data, struct i2c_adapter *adapter)
+static int af9035_add_i2c_dev(struct dvb_usb_device *d, const char *type,
+ u8 addr, void *platform_data, struct i2c_adapter *adapter)
{
int ret, num;
struct state *state = d_to_priv(d);
goto err;
}
- request_module(board_info.type);
+ request_module("%s", board_info.type);
/* register I2C device */
client = i2c_new_device(adapter, &board_info);
return ret;
}
-static int anysee_add_i2c_dev(struct dvb_usb_device *d, char *type, u8 addr,
- void *platform_data)
+static int anysee_add_i2c_dev(struct dvb_usb_device *d, const char *type,
+ u8 addr, void *platform_data)
{
int ret, num;
struct anysee_state *state = d_to_priv(d);
goto err;
}
- request_module(board_info.type);
+ request_module("%s", board_info.type);
/* register I2C device */
client = i2c_new_device(adapter, &board_info);
int em28xx_audio_setup(struct em28xx *dev)
{
int vid1, vid2, feat, cfg;
- u32 vid;
+ u32 vid = 0;
u8 i2s_samplerates;
if (dev->chip_id == CHIP_ID_EM2870 ||
em28xx_info("Registering input extension\n");
ir = kzalloc(sizeof(*ir), GFP_KERNEL);
+ if (!ir)
+ return -ENOMEM;
rc = rc_allocate_device();
- if (!ir || !rc)
+ if (!rc)
goto error;
/* record handles to ourself */
dev->bandwidth->val = bandwidth;
dev->bandwidth->cur.val = bandwidth;
- dev_dbg(dev->dev, "bandwidth selected=%d\n", bandwidth_lut[i].freq);
+ dev_dbg(dev->dev, "bandwidth selected=%d\n", bandwidth);
u16tmp = 0;
u16tmp |= ((bandwidth >> 0) & 0xff) << 0;
if (usbvision->remove_pending) {
printk(KERN_INFO "%s: Final disconnect\n", __func__);
usbvision_release(usbvision);
+ return 0;
}
mutex_unlock(&usbvision->v4l2_lock);
if (usbvision->remove_pending) {
printk(KERN_INFO "%s: Final disconnect\n", __func__);
usbvision_release(usbvision);
+ return err_code;
}
mutex_unlock(&usbvision->v4l2_lock);
stream->ctrl = probe;
stream->cur_format = format;
stream->cur_frame = frame;
- stream->frame_size = fmt->fmt.pix.sizeimage;
done:
mutex_unlock(&stream->mutex);
static void uvc_video_validate_buffer(const struct uvc_streaming *stream,
struct uvc_buffer *buf)
{
- if (stream->frame_size != buf->bytesused &&
+ if (stream->ctrl.dwMaxVideoFrameSize != buf->bytesused &&
!(stream->cur_format->flags & UVC_FMT_FLAG_COMPRESSED))
buf->error = 1;
}
struct uvc_format *def_format;
struct uvc_format *cur_format;
struct uvc_frame *cur_frame;
- size_t frame_size;
/* Protect access to ctrl, cur_format, cur_frame and hardware video
* probe control.
/* Try to remap memory */
size = vma->vm_end - vma->vm_start;
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+
+ /* the "vm_pgoff" is just used in v4l2 to find the
+ * corresponding buffer data structure which is allocated
+ * earlier and it does not mean the offset from the physical
+ * buffer start address as usual. So set it to 0 to pass
+ * the sanity check in vm_iomap_memory().
+ */
+ vma->vm_pgoff = 0;
+
retval = vm_iomap_memory(vma, mem->dma_handle, size);
if (retval) {
dev_err(q->dev, "mmap: remap failed with error %d. ",
#include "cxl.h"
-static struct cxl_sste* find_free_sste(struct cxl_sste *primary_group,
- bool sec_hash,
- struct cxl_sste *secondary_group,
- unsigned int *lru)
+static bool sste_matches(struct cxl_sste *sste, struct copro_slb *slb)
{
- unsigned int i, entry;
- struct cxl_sste *sste, *group = primary_group;
-
- for (i = 0; i < 2; i++) {
- for (entry = 0; entry < 8; entry++) {
- sste = group + entry;
- if (!(be64_to_cpu(sste->esid_data) & SLB_ESID_V))
- return sste;
- }
- if (!sec_hash)
- break;
- group = secondary_group;
+ return ((sste->vsid_data == cpu_to_be64(slb->vsid)) &&
+ (sste->esid_data == cpu_to_be64(slb->esid)));
+}
+
+/*
+ * This finds a free SSTE for the given SLB, or returns NULL if it's already in
+ * the segment table.
+ */
+static struct cxl_sste* find_free_sste(struct cxl_context *ctx,
+ struct copro_slb *slb)
+{
+ struct cxl_sste *primary, *sste, *ret = NULL;
+ unsigned int mask = (ctx->sst_size >> 7) - 1; /* SSTP0[SegTableSize] */
+ unsigned int entry;
+ unsigned int hash;
+
+ if (slb->vsid & SLB_VSID_B_1T)
+ hash = (slb->esid >> SID_SHIFT_1T) & mask;
+ else /* 256M */
+ hash = (slb->esid >> SID_SHIFT) & mask;
+
+ primary = ctx->sstp + (hash << 3);
+
+ for (entry = 0, sste = primary; entry < 8; entry++, sste++) {
+ if (!ret && !(be64_to_cpu(sste->esid_data) & SLB_ESID_V))
+ ret = sste;
+ if (sste_matches(sste, slb))
+ return NULL;
}
+ if (ret)
+ return ret;
+
/* Nothing free, select an entry to cast out */
- if (sec_hash && (*lru & 0x8))
- sste = secondary_group + (*lru & 0x7);
- else
- sste = primary_group + (*lru & 0x7);
- *lru = (*lru + 1) & 0xf;
+ ret = primary + ctx->sst_lru;
+ ctx->sst_lru = (ctx->sst_lru + 1) & 0x7;
- return sste;
+ return ret;
}
static void cxl_load_segment(struct cxl_context *ctx, struct copro_slb *slb)
{
/* mask is the group index, we search primary and secondary here. */
- unsigned int mask = (ctx->sst_size >> 7)-1; /* SSTP0[SegTableSize] */
- bool sec_hash = 1;
struct cxl_sste *sste;
- unsigned int hash;
unsigned long flags;
-
- sec_hash = !!(cxl_p1n_read(ctx->afu, CXL_PSL_SR_An) & CXL_PSL_SR_An_SC);
-
- if (slb->vsid & SLB_VSID_B_1T)
- hash = (slb->esid >> SID_SHIFT_1T) & mask;
- else /* 256M */
- hash = (slb->esid >> SID_SHIFT) & mask;
-
spin_lock_irqsave(&ctx->sste_lock, flags);
- sste = find_free_sste(ctx->sstp + (hash << 3), sec_hash,
- ctx->sstp + ((~hash & mask) << 3), &ctx->sst_lru);
+ sste = find_free_sste(ctx, slb);
+ if (!sste)
+ goto out_unlock;
pr_devel("CXL Populating SST[%li]: %#llx %#llx\n",
sste - ctx->sstp, slb->vsid, slb->esid);
sste->vsid_data = cpu_to_be64(slb->vsid);
sste->esid_data = cpu_to_be64(slb->esid);
+out_unlock:
spin_unlock_irqrestore(&ctx->sste_lock, flags);
}
ctx->elem->haurp = 0; /* disable */
ctx->elem->sdr = cpu_to_be64(mfspr(SPRN_SDR1));
- sr = CXL_PSL_SR_An_SC;
+ sr = 0;
if (ctx->master)
sr |= CXL_PSL_SR_An_MP;
if (mfspr(SPRN_LPCR) & LPCR_TC)
u64 sr;
int rc;
- sr = CXL_PSL_SR_An_SC;
+ sr = 0;
set_endian(sr);
if (ctx->master)
sr |= CXL_PSL_SR_An_MP;
* This function assign memory region pointed by "memory-region" device tree
* property to the given device.
*/
-void of_reserved_mem_device_init(struct device *dev)
+int of_reserved_mem_device_init(struct device *dev)
{
struct reserved_mem *rmem;
struct device_node *np;
+ int ret;
np = of_parse_phandle(dev->of_node, "memory-region", 0);
if (!np)
- return;
+ return -ENODEV;
rmem = __find_rmem(np);
of_node_put(np);
if (!rmem || !rmem->ops || !rmem->ops->device_init)
- return;
+ return -EINVAL;
+
+ ret = rmem->ops->device_init(rmem, dev);
+ if (ret == 0)
+ dev_info(dev, "assigned reserved memory node %s\n", rmem->name);
- rmem->ops->device_init(rmem, dev);
- dev_info(dev, "assigned reserved memory node %s\n", rmem->name);
+ return ret;
}
/**
};
static const struct regulator_linear_range rk808_buck_voltage_ranges[] = {
- REGULATOR_LINEAR_RANGE(700000, 0, 63, 12500),
+ REGULATOR_LINEAR_RANGE(712500, 0, 63, 12500),
};
static const struct regulator_linear_range rk808_buck4_voltage_ranges[] = {
config RTC_DRV_PM8XXX
tristate "Qualcomm PMIC8XXX RTC"
- depends on MFD_PM8XXX
+ depends on MFD_PM8XXX || MFD_SPMI_PMIC
help
If you say yes here you get support for the
Qualcomm PMIC8XXX RTC.
dev_err(dev, "bq32k: diode and resistor mismatch\n");
return -EINVAL;
}
- reg = 0x25;
+ reg = 0x45;
break;
default:
/* RTC_CTRL register bit fields */
#define PM8xxx_RTC_ENABLE BIT(7)
-#define PM8xxx_RTC_ALARM_ENABLE BIT(1)
#define PM8xxx_RTC_ALARM_CLEAR BIT(0)
#define NUM_8_BIT_RTC_REGS 0x4
+/**
+ * struct pm8xxx_rtc_regs - describe RTC registers per PMIC versions
+ * @ctrl: base address of control register
+ * @write: base address of write register
+ * @read: base address of read register
+ * @alarm_ctrl: base address of alarm control register
+ * @alarm_ctrl2: base address of alarm control2 register
+ * @alarm_rw: base address of alarm read-write register
+ * @alarm_en: alarm enable mask
+ */
+struct pm8xxx_rtc_regs {
+ unsigned int ctrl;
+ unsigned int write;
+ unsigned int read;
+ unsigned int alarm_ctrl;
+ unsigned int alarm_ctrl2;
+ unsigned int alarm_rw;
+ unsigned int alarm_en;
+};
+
/**
* struct pm8xxx_rtc - rtc driver internal structure
* @rtc: rtc device for this driver.
* @regmap: regmap used to access RTC registers
* @allow_set_time: indicates whether writing to the RTC is allowed
* @rtc_alarm_irq: rtc alarm irq number.
- * @rtc_base: address of rtc control register.
- * @rtc_read_base: base address of read registers.
- * @rtc_write_base: base address of write registers.
- * @alarm_rw_base: base address of alarm registers.
* @ctrl_reg: rtc control register.
* @rtc_dev: device structure.
* @ctrl_reg_lock: spinlock protecting access to ctrl_reg.
struct regmap *regmap;
bool allow_set_time;
int rtc_alarm_irq;
- int rtc_base;
- int rtc_read_base;
- int rtc_write_base;
- int alarm_rw_base;
- u8 ctrl_reg;
+ const struct pm8xxx_rtc_regs *regs;
struct device *rtc_dev;
spinlock_t ctrl_reg_lock;
};
{
int rc, i;
unsigned long secs, irq_flags;
- u8 value[NUM_8_BIT_RTC_REGS], alarm_enabled = 0, ctrl_reg;
+ u8 value[NUM_8_BIT_RTC_REGS], alarm_enabled = 0;
+ unsigned int ctrl_reg;
struct pm8xxx_rtc *rtc_dd = dev_get_drvdata(dev);
+ const struct pm8xxx_rtc_regs *regs = rtc_dd->regs;
if (!rtc_dd->allow_set_time)
return -EACCES;
dev_dbg(dev, "Seconds value to be written to RTC = %lu\n", secs);
spin_lock_irqsave(&rtc_dd->ctrl_reg_lock, irq_flags);
- ctrl_reg = rtc_dd->ctrl_reg;
- if (ctrl_reg & PM8xxx_RTC_ALARM_ENABLE) {
+ rc = regmap_read(rtc_dd->regmap, regs->ctrl, &ctrl_reg);
+ if (rc)
+ goto rtc_rw_fail;
+
+ if (ctrl_reg & regs->alarm_en) {
alarm_enabled = 1;
- ctrl_reg &= ~PM8xxx_RTC_ALARM_ENABLE;
- rc = regmap_write(rtc_dd->regmap, rtc_dd->rtc_base, ctrl_reg);
+ ctrl_reg &= ~regs->alarm_en;
+ rc = regmap_write(rtc_dd->regmap, regs->ctrl, ctrl_reg);
if (rc) {
dev_err(dev, "Write to RTC control register failed\n");
goto rtc_rw_fail;
}
- rtc_dd->ctrl_reg = ctrl_reg;
- } else {
- spin_unlock_irqrestore(&rtc_dd->ctrl_reg_lock, irq_flags);
}
/* Write 0 to Byte[0] */
- rc = regmap_write(rtc_dd->regmap, rtc_dd->rtc_write_base, 0);
+ rc = regmap_write(rtc_dd->regmap, regs->write, 0);
if (rc) {
dev_err(dev, "Write to RTC write data register failed\n");
goto rtc_rw_fail;
}
/* Write Byte[1], Byte[2], Byte[3] */
- rc = regmap_bulk_write(rtc_dd->regmap, rtc_dd->rtc_write_base + 1,
+ rc = regmap_bulk_write(rtc_dd->regmap, regs->write + 1,
&value[1], sizeof(value) - 1);
if (rc) {
dev_err(dev, "Write to RTC write data register failed\n");
}
/* Write Byte[0] */
- rc = regmap_write(rtc_dd->regmap, rtc_dd->rtc_write_base, value[0]);
+ rc = regmap_write(rtc_dd->regmap, regs->write, value[0]);
if (rc) {
dev_err(dev, "Write to RTC write data register failed\n");
goto rtc_rw_fail;
}
if (alarm_enabled) {
- ctrl_reg |= PM8xxx_RTC_ALARM_ENABLE;
- rc = regmap_write(rtc_dd->regmap, rtc_dd->rtc_base, ctrl_reg);
+ ctrl_reg |= regs->alarm_en;
+ rc = regmap_write(rtc_dd->regmap, regs->ctrl, ctrl_reg);
if (rc) {
dev_err(dev, "Write to RTC control register failed\n");
goto rtc_rw_fail;
}
- rtc_dd->ctrl_reg = ctrl_reg;
}
rtc_rw_fail:
- if (alarm_enabled)
- spin_unlock_irqrestore(&rtc_dd->ctrl_reg_lock, irq_flags);
+ spin_unlock_irqrestore(&rtc_dd->ctrl_reg_lock, irq_flags);
return rc;
}
unsigned long secs;
unsigned int reg;
struct pm8xxx_rtc *rtc_dd = dev_get_drvdata(dev);
+ const struct pm8xxx_rtc_regs *regs = rtc_dd->regs;
- rc = regmap_bulk_read(rtc_dd->regmap, rtc_dd->rtc_read_base,
- value, sizeof(value));
+ rc = regmap_bulk_read(rtc_dd->regmap, regs->read, value, sizeof(value));
if (rc) {
dev_err(dev, "RTC read data register failed\n");
return rc;
* Read the LSB again and check if there has been a carry over.
* If there is, redo the read operation.
*/
- rc = regmap_read(rtc_dd->regmap, rtc_dd->rtc_read_base, ®);
+ rc = regmap_read(rtc_dd->regmap, regs->read, ®);
if (rc < 0) {
dev_err(dev, "RTC read data register failed\n");
return rc;
}
if (unlikely(reg < value[0])) {
- rc = regmap_bulk_read(rtc_dd->regmap, rtc_dd->rtc_read_base,
+ rc = regmap_bulk_read(rtc_dd->regmap, regs->read,
value, sizeof(value));
if (rc) {
dev_err(dev, "RTC read data register failed\n");
static int pm8xxx_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
{
int rc, i;
- u8 value[NUM_8_BIT_RTC_REGS], ctrl_reg;
+ u8 value[NUM_8_BIT_RTC_REGS];
+ unsigned int ctrl_reg;
unsigned long secs, irq_flags;
struct pm8xxx_rtc *rtc_dd = dev_get_drvdata(dev);
+ const struct pm8xxx_rtc_regs *regs = rtc_dd->regs;
rtc_tm_to_time(&alarm->time, &secs);
spin_lock_irqsave(&rtc_dd->ctrl_reg_lock, irq_flags);
- rc = regmap_bulk_write(rtc_dd->regmap, rtc_dd->alarm_rw_base, value,
+ rc = regmap_bulk_write(rtc_dd->regmap, regs->alarm_rw, value,
sizeof(value));
if (rc) {
dev_err(dev, "Write to RTC ALARM register failed\n");
goto rtc_rw_fail;
}
- ctrl_reg = rtc_dd->ctrl_reg;
+ rc = regmap_read(rtc_dd->regmap, regs->alarm_ctrl, &ctrl_reg);
+ if (rc)
+ goto rtc_rw_fail;
if (alarm->enabled)
- ctrl_reg |= PM8xxx_RTC_ALARM_ENABLE;
+ ctrl_reg |= regs->alarm_en;
else
- ctrl_reg &= ~PM8xxx_RTC_ALARM_ENABLE;
+ ctrl_reg &= ~regs->alarm_en;
- rc = regmap_write(rtc_dd->regmap, rtc_dd->rtc_base, ctrl_reg);
+ rc = regmap_write(rtc_dd->regmap, regs->alarm_ctrl, ctrl_reg);
if (rc) {
- dev_err(dev, "Write to RTC control register failed\n");
+ dev_err(dev, "Write to RTC alarm control register failed\n");
goto rtc_rw_fail;
}
- rtc_dd->ctrl_reg = ctrl_reg;
-
dev_dbg(dev, "Alarm Set for h:r:s=%d:%d:%d, d/m/y=%d/%d/%d\n",
alarm->time.tm_hour, alarm->time.tm_min,
alarm->time.tm_sec, alarm->time.tm_mday,
u8 value[NUM_8_BIT_RTC_REGS];
unsigned long secs;
struct pm8xxx_rtc *rtc_dd = dev_get_drvdata(dev);
+ const struct pm8xxx_rtc_regs *regs = rtc_dd->regs;
- rc = regmap_bulk_read(rtc_dd->regmap, rtc_dd->alarm_rw_base, value,
+ rc = regmap_bulk_read(rtc_dd->regmap, regs->alarm_rw, value,
sizeof(value));
if (rc) {
dev_err(dev, "RTC alarm time read failed\n");
int rc;
unsigned long irq_flags;
struct pm8xxx_rtc *rtc_dd = dev_get_drvdata(dev);
- u8 ctrl_reg;
+ const struct pm8xxx_rtc_regs *regs = rtc_dd->regs;
+ unsigned int ctrl_reg;
spin_lock_irqsave(&rtc_dd->ctrl_reg_lock, irq_flags);
- ctrl_reg = rtc_dd->ctrl_reg;
+ rc = regmap_read(rtc_dd->regmap, regs->alarm_ctrl, &ctrl_reg);
+ if (rc)
+ goto rtc_rw_fail;
if (enable)
- ctrl_reg |= PM8xxx_RTC_ALARM_ENABLE;
+ ctrl_reg |= regs->alarm_en;
else
- ctrl_reg &= ~PM8xxx_RTC_ALARM_ENABLE;
+ ctrl_reg &= ~regs->alarm_en;
- rc = regmap_write(rtc_dd->regmap, rtc_dd->rtc_base, ctrl_reg);
+ rc = regmap_write(rtc_dd->regmap, regs->alarm_ctrl, ctrl_reg);
if (rc) {
dev_err(dev, "Write to RTC control register failed\n");
goto rtc_rw_fail;
}
- rtc_dd->ctrl_reg = ctrl_reg;
-
rtc_rw_fail:
spin_unlock_irqrestore(&rtc_dd->ctrl_reg_lock, irq_flags);
return rc;
static irqreturn_t pm8xxx_alarm_trigger(int irq, void *dev_id)
{
struct pm8xxx_rtc *rtc_dd = dev_id;
+ const struct pm8xxx_rtc_regs *regs = rtc_dd->regs;
unsigned int ctrl_reg;
int rc;
unsigned long irq_flags;
spin_lock_irqsave(&rtc_dd->ctrl_reg_lock, irq_flags);
/* Clear the alarm enable bit */
- ctrl_reg = rtc_dd->ctrl_reg;
- ctrl_reg &= ~PM8xxx_RTC_ALARM_ENABLE;
+ rc = regmap_read(rtc_dd->regmap, regs->alarm_ctrl, &ctrl_reg);
+ if (rc) {
+ spin_unlock_irqrestore(&rtc_dd->ctrl_reg_lock, irq_flags);
+ goto rtc_alarm_handled;
+ }
+
+ ctrl_reg &= ~regs->alarm_en;
- rc = regmap_write(rtc_dd->regmap, rtc_dd->rtc_base, ctrl_reg);
+ rc = regmap_write(rtc_dd->regmap, regs->alarm_ctrl, ctrl_reg);
if (rc) {
spin_unlock_irqrestore(&rtc_dd->ctrl_reg_lock, irq_flags);
dev_err(rtc_dd->rtc_dev,
- "Write to RTC control register failed\n");
+ "Write to alarm control register failed\n");
goto rtc_alarm_handled;
}
- rtc_dd->ctrl_reg = ctrl_reg;
spin_unlock_irqrestore(&rtc_dd->ctrl_reg_lock, irq_flags);
/* Clear RTC alarm register */
- rc = regmap_read(rtc_dd->regmap,
- rtc_dd->rtc_base + PM8XXX_ALARM_CTRL_OFFSET,
- &ctrl_reg);
+ rc = regmap_read(rtc_dd->regmap, regs->alarm_ctrl2, &ctrl_reg);
if (rc) {
dev_err(rtc_dd->rtc_dev,
- "RTC Alarm control register read failed\n");
+ "RTC Alarm control2 register read failed\n");
goto rtc_alarm_handled;
}
- ctrl_reg &= ~PM8xxx_RTC_ALARM_CLEAR;
- rc = regmap_write(rtc_dd->regmap,
- rtc_dd->rtc_base + PM8XXX_ALARM_CTRL_OFFSET,
- ctrl_reg);
+ ctrl_reg |= PM8xxx_RTC_ALARM_CLEAR;
+ rc = regmap_write(rtc_dd->regmap, regs->alarm_ctrl2, ctrl_reg);
if (rc)
dev_err(rtc_dd->rtc_dev,
- "Write to RTC Alarm control register failed\n");
+ "Write to RTC Alarm control2 register failed\n");
rtc_alarm_handled:
return IRQ_HANDLED;
}
+static int pm8xxx_rtc_enable(struct pm8xxx_rtc *rtc_dd)
+{
+ const struct pm8xxx_rtc_regs *regs = rtc_dd->regs;
+ unsigned int ctrl_reg;
+ int rc;
+
+ /* Check if the RTC is on, else turn it on */
+ rc = regmap_read(rtc_dd->regmap, regs->ctrl, &ctrl_reg);
+ if (rc)
+ return rc;
+
+ if (!(ctrl_reg & PM8xxx_RTC_ENABLE)) {
+ ctrl_reg |= PM8xxx_RTC_ENABLE;
+ rc = regmap_write(rtc_dd->regmap, regs->ctrl, ctrl_reg);
+ if (rc)
+ return rc;
+ }
+
+ return 0;
+}
+
+static const struct pm8xxx_rtc_regs pm8921_regs = {
+ .ctrl = 0x11d,
+ .write = 0x11f,
+ .read = 0x123,
+ .alarm_rw = 0x127,
+ .alarm_ctrl = 0x11d,
+ .alarm_ctrl2 = 0x11e,
+ .alarm_en = BIT(1),
+};
+
+static const struct pm8xxx_rtc_regs pm8058_regs = {
+ .ctrl = 0x1e8,
+ .write = 0x1ea,
+ .read = 0x1ee,
+ .alarm_rw = 0x1f2,
+ .alarm_ctrl = 0x1e8,
+ .alarm_ctrl2 = 0x1e9,
+ .alarm_en = BIT(1),
+};
+
+static const struct pm8xxx_rtc_regs pm8941_regs = {
+ .ctrl = 0x6046,
+ .write = 0x6040,
+ .read = 0x6048,
+ .alarm_rw = 0x6140,
+ .alarm_ctrl = 0x6146,
+ .alarm_ctrl2 = 0x6148,
+ .alarm_en = BIT(7),
+};
+
/*
* Hardcoded RTC bases until IORESOURCE_REG mapping is figured out
*/
static const struct of_device_id pm8xxx_id_table[] = {
- { .compatible = "qcom,pm8921-rtc", .data = (void *) 0x11D },
- { .compatible = "qcom,pm8058-rtc", .data = (void *) 0x1E8 },
+ { .compatible = "qcom,pm8921-rtc", .data = &pm8921_regs },
+ { .compatible = "qcom,pm8058-rtc", .data = &pm8058_regs },
+ { .compatible = "qcom,pm8941-rtc", .data = &pm8941_regs },
{ },
};
MODULE_DEVICE_TABLE(of, pm8xxx_id_table);
static int pm8xxx_rtc_probe(struct platform_device *pdev)
{
int rc;
- unsigned int ctrl_reg;
struct pm8xxx_rtc *rtc_dd;
const struct of_device_id *match;
rtc_dd->allow_set_time = of_property_read_bool(pdev->dev.of_node,
"allow-set-time");
- rtc_dd->rtc_base = (long) match->data;
-
- /* Setup RTC register addresses */
- rtc_dd->rtc_write_base = rtc_dd->rtc_base + PM8XXX_RTC_WRITE_OFFSET;
- rtc_dd->rtc_read_base = rtc_dd->rtc_base + PM8XXX_RTC_READ_OFFSET;
- rtc_dd->alarm_rw_base = rtc_dd->rtc_base + PM8XXX_ALARM_RW_OFFSET;
-
+ rtc_dd->regs = match->data;
rtc_dd->rtc_dev = &pdev->dev;
- /* Check if the RTC is on, else turn it on */
- rc = regmap_read(rtc_dd->regmap, rtc_dd->rtc_base, &ctrl_reg);
- if (rc) {
- dev_err(&pdev->dev, "RTC control register read failed!\n");
+ rc = pm8xxx_rtc_enable(rtc_dd);
+ if (rc)
return rc;
- }
-
- if (!(ctrl_reg & PM8xxx_RTC_ENABLE)) {
- ctrl_reg |= PM8xxx_RTC_ENABLE;
- rc = regmap_write(rtc_dd->regmap, rtc_dd->rtc_base, ctrl_reg);
- if (rc) {
- dev_err(&pdev->dev,
- "Write to RTC control register failed\n");
- return rc;
- }
- }
-
- rtc_dd->ctrl_reg = ctrl_reg;
platform_set_drvdata(pdev, rtc_dd);
}
clk_prepare_enable(info->rtc_clk);
- info->rtc_src_clk = devm_clk_get(&pdev->dev, "rtc_src");
- if (IS_ERR(info->rtc_src_clk)) {
- dev_err(&pdev->dev, "failed to find rtc source clock\n");
- return PTR_ERR(info->rtc_src_clk);
+ if (info->data->needs_src_clk) {
+ info->rtc_src_clk = devm_clk_get(&pdev->dev, "rtc_src");
+ if (IS_ERR(info->rtc_src_clk)) {
+ dev_err(&pdev->dev,
+ "failed to find rtc source clock\n");
+ return PTR_ERR(info->rtc_src_clk);
+ }
+ clk_prepare_enable(info->rtc_src_clk);
}
- clk_prepare_enable(info->rtc_src_clk);
-
/* check to see if everything is setup correctly */
if (info->data->enable)
master->cleanup = dw_spi_cleanup;
master->transfer_one_message = dw_spi_transfer_one_message;
master->max_speed_hz = dws->max_freq;
+ master->dev.of_node = dev->of_node;
/* Basic HW init */
spi_hw_init(dws);
spi->master = master;
of_id = of_match_device(orion_spi_of_match_table, &pdev->dev);
- devdata = of_id->data;
+ devdata = (of_id) ? of_id->data : &orion_spi_dev_data;
spi->devdata = devdata;
spi->clk = devm_clk_get(&pdev->dev, NULL);
pl022->sgt_tx.nents, DMA_TO_DEVICE);
err_tx_sgmap:
dma_unmap_sg(rxchan->device->dev, pl022->sgt_rx.sgl,
- pl022->sgt_tx.nents, DMA_FROM_DEVICE);
+ pl022->sgt_rx.nents, DMA_FROM_DEVICE);
err_rx_sgmap:
sg_free_table(&pl022->sgt_tx);
err_alloc_tx_sg:
#define RXBUSY (1 << 0)
#define TXBUSY (1 << 1)
+/* sclk_out: spi master internal logic in rk3x can support 50Mhz */
+#define MAX_SCLK_OUT 50000000
+
enum rockchip_ssi_type {
SSI_MOTO_SPI = 0,
SSI_TI_SSP,
spin_unlock_irqrestore(&rs->lock, flags);
+ spi_enable_chip(rs, 0);
+
return 0;
}
if (rs->tx)
wait_for_idle(rs);
+ spi_enable_chip(rs, 0);
+
return 0;
}
spin_lock_irqsave(&rs->lock, flags);
rs->state &= ~RXBUSY;
- if (!(rs->state & TXBUSY))
+ if (!(rs->state & TXBUSY)) {
+ spi_enable_chip(rs, 0);
spi_finalize_current_transfer(rs->master);
+ }
spin_unlock_irqrestore(&rs->lock, flags);
}
spin_lock_irqsave(&rs->lock, flags);
rs->state &= ~TXBUSY;
- if (!(rs->state & RXBUSY))
+ if (!(rs->state & RXBUSY)) {
+ spi_enable_chip(rs, 0);
spi_finalize_current_transfer(rs->master);
+ }
spin_unlock_irqrestore(&rs->lock, flags);
}
dmacr |= RF_DMA_EN;
}
+ if (WARN_ON(rs->speed > MAX_SCLK_OUT))
+ rs->speed = MAX_SCLK_OUT;
+
+ /* the minimum divsor is 2 */
+ if (rs->max_freq < 2 * rs->speed) {
+ clk_set_rate(rs->spiclk, 2 * rs->speed);
+ rs->max_freq = clk_get_rate(rs->spiclk);
+ }
+
/* div doesn't support odd number */
div = max_t(u32, rs->max_freq / rs->speed, 1);
div = (div + 1) & 0xfffe;
- spi_enable_chip(rs, 0);
-
writel_relaxed(cr0, rs->regs + ROCKCHIP_SPI_CTRLR0);
writel_relaxed(rs->len - 1, rs->regs + ROCKCHIP_SPI_CTRLR1);
spi_set_clk(rs, div);
dev_dbg(rs->dev, "cr0 0x%x, div %d\n", cr0, div);
-
- spi_enable_chip(rs, 1);
}
static int rockchip_spi_transfer_one(
struct spi_device *spi,
struct spi_transfer *xfer)
{
- int ret = 0;
+ int ret = 1;
struct rockchip_spi *rs = spi_master_get_devdata(master);
WARN_ON(readl_relaxed(rs->regs + ROCKCHIP_SPI_SSIENR) &&
rs->tmode = CR0_XFM_RO;
/* we need prepare dma before spi was enabled */
- if (master->can_dma && master->can_dma(master, spi, xfer)) {
+ if (master->can_dma && master->can_dma(master, spi, xfer))
rs->use_dma = 1;
- rockchip_spi_prepare_dma(rs);
- } else {
+ else
rs->use_dma = 0;
- }
rockchip_spi_config(rs);
- if (!rs->use_dma)
+ if (rs->use_dma) {
+ if (rs->tmode == CR0_XFM_RO) {
+ /* rx: dma must be prepared first */
+ rockchip_spi_prepare_dma(rs);
+ spi_enable_chip(rs, 1);
+ } else {
+ /* tx or tr: spi must be enabled first */
+ spi_enable_chip(rs, 1);
+ rockchip_spi_prepare_dma(rs);
+ }
+ } else {
+ spi_enable_chip(rs, 1);
ret = rockchip_spi_pio_transfer(rs);
+ }
return ret;
}
struct spi_device *spi;
struct list_head device_entry;
- /* buffer is NULL unless this device is open (users > 0) */
+ /* TX/RX buffers are NULL unless this device is open (users > 0) */
struct mutex buf_lock;
unsigned users;
- u8 *buffer;
+ u8 *tx_buffer;
+ u8 *rx_buffer;
};
static LIST_HEAD(device_list);
spidev_sync_write(struct spidev_data *spidev, size_t len)
{
struct spi_transfer t = {
- .tx_buf = spidev->buffer,
+ .tx_buf = spidev->tx_buffer,
.len = len,
};
struct spi_message m;
spidev_sync_read(struct spidev_data *spidev, size_t len)
{
struct spi_transfer t = {
- .rx_buf = spidev->buffer,
+ .rx_buf = spidev->rx_buffer,
.len = len,
};
struct spi_message m;
if (status > 0) {
unsigned long missing;
- missing = copy_to_user(buf, spidev->buffer, status);
+ missing = copy_to_user(buf, spidev->rx_buffer, status);
if (missing == status)
status = -EFAULT;
else
spidev = filp->private_data;
mutex_lock(&spidev->buf_lock);
- missing = copy_from_user(spidev->buffer, buf, count);
+ missing = copy_from_user(spidev->tx_buffer, buf, count);
if (missing == 0)
status = spidev_sync_write(spidev, count);
else
struct spi_transfer *k_tmp;
struct spi_ioc_transfer *u_tmp;
unsigned n, total;
- u8 *buf;
+ u8 *tx_buf, *rx_buf;
int status = -EFAULT;
spi_message_init(&msg);
* We walk the array of user-provided transfers, using each one
* to initialize a kernel version of the same transfer.
*/
- buf = spidev->buffer;
+ tx_buf = spidev->tx_buffer;
+ rx_buf = spidev->rx_buffer;
total = 0;
for (n = n_xfers, k_tmp = k_xfers, u_tmp = u_xfers;
n;
}
if (u_tmp->rx_buf) {
- k_tmp->rx_buf = buf;
+ k_tmp->rx_buf = rx_buf;
if (!access_ok(VERIFY_WRITE, (u8 __user *)
(uintptr_t) u_tmp->rx_buf,
u_tmp->len))
goto done;
}
if (u_tmp->tx_buf) {
- k_tmp->tx_buf = buf;
- if (copy_from_user(buf, (const u8 __user *)
+ k_tmp->tx_buf = tx_buf;
+ if (copy_from_user(tx_buf, (const u8 __user *)
(uintptr_t) u_tmp->tx_buf,
u_tmp->len))
goto done;
}
- buf += k_tmp->len;
+ tx_buf += k_tmp->len;
+ rx_buf += k_tmp->len;
k_tmp->cs_change = !!u_tmp->cs_change;
k_tmp->tx_nbits = u_tmp->tx_nbits;
goto done;
/* copy any rx data out of bounce buffer */
- buf = spidev->buffer;
+ rx_buf = spidev->rx_buffer;
for (n = n_xfers, u_tmp = u_xfers; n; n--, u_tmp++) {
if (u_tmp->rx_buf) {
if (__copy_to_user((u8 __user *)
- (uintptr_t) u_tmp->rx_buf, buf,
+ (uintptr_t) u_tmp->rx_buf, rx_buf,
u_tmp->len)) {
status = -EFAULT;
goto done;
}
}
- buf += u_tmp->len;
+ rx_buf += u_tmp->len;
}
status = total;
break;
}
}
- if (status == 0) {
- if (!spidev->buffer) {
- spidev->buffer = kmalloc(bufsiz, GFP_KERNEL);
- if (!spidev->buffer) {
+
+ if (status) {
+ pr_debug("spidev: nothing for minor %d\n", iminor(inode));
+ goto err_find_dev;
+ }
+
+ if (!spidev->tx_buffer) {
+ spidev->tx_buffer = kmalloc(bufsiz, GFP_KERNEL);
+ if (!spidev->tx_buffer) {
dev_dbg(&spidev->spi->dev, "open/ENOMEM\n");
status = -ENOMEM;
+ goto err_find_dev;
}
}
- if (status == 0) {
- spidev->users++;
- filp->private_data = spidev;
- nonseekable_open(inode, filp);
+
+ if (!spidev->rx_buffer) {
+ spidev->rx_buffer = kmalloc(bufsiz, GFP_KERNEL);
+ if (!spidev->rx_buffer) {
+ dev_dbg(&spidev->spi->dev, "open/ENOMEM\n");
+ status = -ENOMEM;
+ goto err_alloc_rx_buf;
}
- } else
- pr_debug("spidev: nothing for minor %d\n", iminor(inode));
+ }
+
+ spidev->users++;
+ filp->private_data = spidev;
+ nonseekable_open(inode, filp);
+
+ mutex_unlock(&device_list_lock);
+ return 0;
+err_alloc_rx_buf:
+ kfree(spidev->tx_buffer);
+ spidev->tx_buffer = NULL;
+err_find_dev:
mutex_unlock(&device_list_lock);
return status;
}
if (!spidev->users) {
int dofree;
- kfree(spidev->buffer);
- spidev->buffer = NULL;
+ kfree(spidev->tx_buffer);
+ spidev->tx_buffer = NULL;
+
+ kfree(spidev->rx_buffer);
+ spidev->rx_buffer = NULL;
/* ... after we unbound from the underlying device? */
spin_lock_irq(&spidev->spi_lock);
page_cache_release(page);
}
-
-static int quiet_error(struct buffer_head *bh)
-{
- if (!test_bit(BH_Quiet, &bh->b_state) && printk_ratelimit())
- return 0;
- return 1;
-}
-
-
-static void buffer_io_error(struct buffer_head *bh)
+static void buffer_io_error(struct buffer_head *bh, char *msg)
{
char b[BDEVNAME_SIZE];
- printk(KERN_ERR "Buffer I/O error on device %s, logical block %Lu\n",
+
+ if (!test_bit(BH_Quiet, &bh->b_state))
+ printk_ratelimited(KERN_ERR
+ "Buffer I/O error on dev %s, logical block %llu%s\n",
bdevname(bh->b_bdev, b),
- (unsigned long long)bh->b_blocknr);
+ (unsigned long long)bh->b_blocknr, msg);
}
/*
void end_buffer_write_sync(struct buffer_head *bh, int uptodate)
{
- char b[BDEVNAME_SIZE];
-
if (uptodate) {
set_buffer_uptodate(bh);
} else {
- if (!quiet_error(bh)) {
- buffer_io_error(bh);
- printk(KERN_WARNING "lost page write due to "
- "I/O error on %s\n",
- bdevname(bh->b_bdev, b));
- }
+ buffer_io_error(bh, ", lost sync page write");
set_buffer_write_io_error(bh);
clear_buffer_uptodate(bh);
}
set_buffer_uptodate(bh);
} else {
clear_buffer_uptodate(bh);
- if (!quiet_error(bh))
- buffer_io_error(bh);
+ buffer_io_error(bh, ", async page read");
SetPageError(page);
}
*/
void end_buffer_async_write(struct buffer_head *bh, int uptodate)
{
- char b[BDEVNAME_SIZE];
unsigned long flags;
struct buffer_head *first;
struct buffer_head *tmp;
if (uptodate) {
set_buffer_uptodate(bh);
} else {
- if (!quiet_error(bh)) {
- buffer_io_error(bh);
- printk(KERN_WARNING "lost page write due to "
- "I/O error on %s\n",
- bdevname(bh->b_bdev, b));
- }
+ buffer_io_error(bh, ", lost async page write");
set_bit(AS_EIO, &page->mapping->flags);
set_buffer_write_io_error(bh);
clear_buffer_uptodate(bh);
*/
if (argp->opcnt == resp->opcnt)
return false;
-
+ if (next->opnum == OP_ILLEGAL)
+ return false;
nextd = OPDESC(next);
/*
* Rest of 2.6.3.1.1: certain operations will return WRONGSEC
static inline u32 nfsd4_sequence_rsize(struct svc_rqst *rqstp,
struct nfsd4_op *op)
{
- return NFS4_MAX_SESSIONID_LEN + 20;
+ return (op_encode_hdr_size
+ + XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) * sizeof(__be32);
}
static inline u32 nfsd4_setattr_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
.op_func = (nfsd4op_func)nfsd4_sequence,
.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP,
.op_name = "OP_SEQUENCE",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_sequence_rsize,
},
[OP_DESTROY_CLIENTID] = {
.op_func = (nfsd4op_func)nfsd4_destroy_clientid,
spin_unlock(&inode->i_lock);
/* In case the dropping of a reference would nuke next_i. */
- if ((&next_i->i_sb_list != list) &&
- atomic_read(&next_i->i_count)) {
+ while (&next_i->i_sb_list != list) {
spin_lock(&next_i->i_lock);
- if (!(next_i->i_state & (I_FREEING | I_WILL_FREE))) {
+ if (!(next_i->i_state & (I_FREEING | I_WILL_FREE)) &&
+ atomic_read(&next_i->i_count)) {
__iget(next_i);
need_iput = next_i;
+ spin_unlock(&next_i->i_lock);
+ break;
}
spin_unlock(&next_i->i_lock);
+ next_i = list_entry(next_i->i_sb_list.next,
+ struct inode, i_sb_list);
}
/*
- * We can safely drop inode_sb_list_lock here because we hold
- * references on both inode and next_i. Also no new inodes
- * will be added since the umount has begun.
+ * We can safely drop inode_sb_list_lock here because either
+ * we actually hold references on both inode and next_i or
+ * end of list. Also no new inodes will be added since the
+ * umount has begun.
*/
spin_unlock(&inode_sb_list_lock);
* NOTE: This dentry already has ->d_op set from
* ocfs2_get_parent() and ocfs2_get_dentry()
*/
- if (ret)
+ if (!IS_ERR_OR_NULL(ret))
dentry = ret;
status = ocfs2_dentry_attach_lock(dentry, inode,
struct request *r1,
struct request *r2)
{
- return 0;
+ return true;
}
static inline bool blk_integrity_merge_bio(struct request_queue *rq,
struct request *r,
struct bio *b)
{
- return 0;
+ return true;
}
static inline bool blk_integrity_is_initialized(struct gendisk *g)
{
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
extern int __khugepaged_enter(struct mm_struct *mm);
extern void __khugepaged_exit(struct mm_struct *mm);
-extern int khugepaged_enter_vma_merge(struct vm_area_struct *vma);
+extern int khugepaged_enter_vma_merge(struct vm_area_struct *vma,
+ unsigned long vm_flags);
#define khugepaged_enabled() \
(transparent_hugepage_flags & \
__khugepaged_exit(mm);
}
-static inline int khugepaged_enter(struct vm_area_struct *vma)
+static inline int khugepaged_enter(struct vm_area_struct *vma,
+ unsigned long vm_flags)
{
if (!test_bit(MMF_VM_HUGEPAGE, &vma->vm_mm->flags))
if ((khugepaged_always() ||
- (khugepaged_req_madv() &&
- vma->vm_flags & VM_HUGEPAGE)) &&
- !(vma->vm_flags & VM_NOHUGEPAGE))
+ (khugepaged_req_madv() && (vm_flags & VM_HUGEPAGE))) &&
+ !(vm_flags & VM_NOHUGEPAGE))
if (__khugepaged_enter(vma->vm_mm))
return -ENOMEM;
return 0;
static inline void khugepaged_exit(struct mm_struct *mm)
{
}
-static inline int khugepaged_enter(struct vm_area_struct *vma)
+static inline int khugepaged_enter(struct vm_area_struct *vma,
+ unsigned long vm_flags)
{
return 0;
}
-static inline int khugepaged_enter_vma_merge(struct vm_area_struct *vma)
+static inline int khugepaged_enter_vma_merge(struct vm_area_struct *vma,
+ unsigned long vm_flags)
{
return 0;
}
return false;
}
-void __mem_cgroup_begin_update_page_stat(struct page *page, bool *locked,
- unsigned long *flags);
-
-extern atomic_t memcg_moving;
-
-static inline void mem_cgroup_begin_update_page_stat(struct page *page,
- bool *locked, unsigned long *flags)
-{
- if (mem_cgroup_disabled())
- return;
- rcu_read_lock();
- *locked = false;
- if (atomic_read(&memcg_moving))
- __mem_cgroup_begin_update_page_stat(page, locked, flags);
-}
-
-void __mem_cgroup_end_update_page_stat(struct page *page,
- unsigned long *flags);
-static inline void mem_cgroup_end_update_page_stat(struct page *page,
- bool *locked, unsigned long *flags)
-{
- if (mem_cgroup_disabled())
- return;
- if (*locked)
- __mem_cgroup_end_update_page_stat(page, flags);
- rcu_read_unlock();
-}
-
-void mem_cgroup_update_page_stat(struct page *page,
- enum mem_cgroup_stat_index idx,
- int val);
-
-static inline void mem_cgroup_inc_page_stat(struct page *page,
+struct mem_cgroup *mem_cgroup_begin_page_stat(struct page *page, bool *locked,
+ unsigned long *flags);
+void mem_cgroup_end_page_stat(struct mem_cgroup *memcg, bool locked,
+ unsigned long flags);
+void mem_cgroup_update_page_stat(struct mem_cgroup *memcg,
+ enum mem_cgroup_stat_index idx, int val);
+
+static inline void mem_cgroup_inc_page_stat(struct mem_cgroup *memcg,
enum mem_cgroup_stat_index idx)
{
- mem_cgroup_update_page_stat(page, idx, 1);
+ mem_cgroup_update_page_stat(memcg, idx, 1);
}
-static inline void mem_cgroup_dec_page_stat(struct page *page,
+static inline void mem_cgroup_dec_page_stat(struct mem_cgroup *memcg,
enum mem_cgroup_stat_index idx)
{
- mem_cgroup_update_page_stat(page, idx, -1);
+ mem_cgroup_update_page_stat(memcg, idx, -1);
}
unsigned long mem_cgroup_soft_limit_reclaim(struct zone *zone, int order,
{
}
-static inline void mem_cgroup_begin_update_page_stat(struct page *page,
+static inline struct mem_cgroup *mem_cgroup_begin_page_stat(struct page *page,
bool *locked, unsigned long *flags)
{
+ return NULL;
}
-static inline void mem_cgroup_end_update_page_stat(struct page *page,
- bool *locked, unsigned long *flags)
+static inline void mem_cgroup_end_page_stat(struct mem_cgroup *memcg,
+ bool locked, unsigned long flags)
{
}
return false;
}
-static inline void mem_cgroup_inc_page_stat(struct page *page,
+static inline void mem_cgroup_inc_page_stat(struct mem_cgroup *memcg,
enum mem_cgroup_stat_index idx)
{
}
-static inline void mem_cgroup_dec_page_stat(struct page *page,
+static inline void mem_cgroup_dec_page_stat(struct mem_cgroup *memcg,
enum mem_cgroup_stat_index idx)
{
}
int redirty_page_for_writepage(struct writeback_control *wbc,
struct page *page);
void account_page_dirtied(struct page *page, struct address_space *mapping);
-void account_page_writeback(struct page *page);
int set_page_dirty(struct page *page);
int set_page_dirty_lock(struct page *page);
int clear_page_dirty_for_io(struct page *page);
};
struct reserved_mem_ops {
- void (*device_init)(struct reserved_mem *rmem,
+ int (*device_init)(struct reserved_mem *rmem,
struct device *dev);
void (*device_release)(struct reserved_mem *rmem,
struct device *dev);
_OF_DECLARE(reservedmem, name, compat, init, reservedmem_of_init_fn)
#ifdef CONFIG_OF_RESERVED_MEM
-void of_reserved_mem_device_init(struct device *dev);
+int of_reserved_mem_device_init(struct device *dev);
void of_reserved_mem_device_release(struct device *dev);
void fdt_init_reserved_mem(void);
void fdt_reserved_mem_save_node(unsigned long node, const char *uname,
phys_addr_t base, phys_addr_t size);
#else
-static inline void of_reserved_mem_device_init(struct device *dev) { }
+static inline int of_reserved_mem_device_init(struct device *dev)
+{
+ return -ENOSYS;
+}
static inline void of_reserved_mem_device_release(struct device *pdev) { }
static inline void fdt_init_reserved_mem(void) { }
#ifndef __LINUX_REGULATOR_CONSUMER_H_
#define __LINUX_REGULATOR_CONSUMER_H_
+#include <linux/err.h>
+
struct device;
struct notifier_block;
struct regmap;
#define KEY_BRIGHTNESS_MIN 0x250 /* Set Brightness to Minimum */
#define KEY_BRIGHTNESS_MAX 0x251 /* Set Brightness to Maximum */
+#define KEY_KBDINPUTASSIST_PREV 0x260
+#define KEY_KBDINPUTASSIST_NEXT 0x261
+#define KEY_KBDINPUTASSIST_PREVGROUP 0x262
+#define KEY_KBDINPUTASSIST_NEXTGROUP 0x263
+#define KEY_KBDINPUTASSIST_ACCEPT 0x264
+#define KEY_KBDINPUTASSIST_CANCEL 0x265
+
#define BTN_TRIGGER_HAPPY 0x2c0
#define BTN_TRIGGER_HAPPY1 0x2c0
#define BTN_TRIGGER_HAPPY2 0x2c1
#ifndef _V4L2_DV_TIMINGS_H
#define _V4L2_DV_TIMINGS_H
+#if __GNUC__ < 4 || (__GNUC__ == 4 && (__GNUC_MINOR__ < 6))
+/* Sadly gcc versions older than 4.6 have a bug in how they initialize
+ anonymous unions where they require additional curly brackets.
+ This violates the C1x standard. This workaround adds the curly brackets
+ if needed. */
#define V4L2_INIT_BT_TIMINGS(_width, args...) \
{ .bt = { _width , ## args } }
+#else
+#define V4L2_INIT_BT_TIMINGS(_width, args...) \
+ .bt = { _width , ## args }
+#endif
/* CEA-861-E timings (i.e. standard HDTV timings) */
config GCOV_PROFILE_ALL
bool "Profile entire Kernel"
depends on GCOV_KERNEL
- depends on SUPERH || S390 || X86 || PPC || MICROBLAZE || ARM
+ depends on SUPERH || S390 || X86 || PPC || MICROBLAZE || ARM || ARM64
default n
---help---
This options activates profiling for the entire kernel.
EXPORT_SYMBOL(__request_module);
#endif /* CONFIG_MODULES */
+static void call_usermodehelper_freeinfo(struct subprocess_info *info)
+{
+ if (info->cleanup)
+ (*info->cleanup)(info);
+ kfree(info);
+}
+
+static void umh_complete(struct subprocess_info *sub_info)
+{
+ struct completion *comp = xchg(&sub_info->complete, NULL);
+ /*
+ * See call_usermodehelper_exec(). If xchg() returns NULL
+ * we own sub_info, the UMH_KILLABLE caller has gone away
+ * or the caller used UMH_NO_WAIT.
+ */
+ if (comp)
+ complete(comp);
+ else
+ call_usermodehelper_freeinfo(sub_info);
+}
+
/*
* This is the task which runs the usermode application
*/
static int ____call_usermodehelper(void *data)
{
struct subprocess_info *sub_info = data;
+ int wait = sub_info->wait & ~UMH_KILLABLE;
struct cred *new;
int retval;
retval = -ENOMEM;
new = prepare_kernel_cred(current);
if (!new)
- goto fail;
+ goto out;
spin_lock(&umh_sysctl_lock);
new->cap_bset = cap_intersect(usermodehelper_bset, new->cap_bset);
retval = sub_info->init(sub_info, new);
if (retval) {
abort_creds(new);
- goto fail;
+ goto out;
}
}
retval = do_execve(getname_kernel(sub_info->path),
(const char __user *const __user *)sub_info->argv,
(const char __user *const __user *)sub_info->envp);
+out:
+ sub_info->retval = retval;
+ /* wait_for_helper() will call umh_complete if UHM_WAIT_PROC. */
+ if (wait != UMH_WAIT_PROC)
+ umh_complete(sub_info);
if (!retval)
return 0;
-
- /* Exec failed? */
-fail:
- sub_info->retval = retval;
do_exit(0);
}
return ____call_usermodehelper(data);
}
-static void call_usermodehelper_freeinfo(struct subprocess_info *info)
-{
- if (info->cleanup)
- (*info->cleanup)(info);
- kfree(info);
-}
-
-static void umh_complete(struct subprocess_info *sub_info)
-{
- struct completion *comp = xchg(&sub_info->complete, NULL);
- /*
- * See call_usermodehelper_exec(). If xchg() returns NULL
- * we own sub_info, the UMH_KILLABLE caller has gone away.
- */
- if (comp)
- complete(comp);
- else
- call_usermodehelper_freeinfo(sub_info);
-}
-
/* Keventd can't block, but this (a child) can. */
static int wait_for_helper(void *data)
{
kmod_thread_locker = NULL;
}
- switch (wait) {
- case UMH_NO_WAIT:
- call_usermodehelper_freeinfo(sub_info);
- break;
-
- case UMH_WAIT_PROC:
- if (pid > 0)
- break;
- /* FALLTHROUGH */
- case UMH_WAIT_EXEC:
- if (pid < 0)
- sub_info->retval = pid;
+ if (pid < 0) {
+ sub_info->retval = pid;
umh_complete(sub_info);
}
}
goto out;
}
- sub_info->complete = &done;
+ /*
+ * Set the completion pointer only if there is a waiter.
+ * This makes it possible to use umh_complete to free
+ * the data structure in case of UMH_NO_WAIT.
+ */
+ sub_info->complete = (wait == UMH_NO_WAIT) ? NULL : &done;
sub_info->wait = wait;
queue_work(khelper_wq, &sub_info->work);
* when we are adding another op to the rec or removing the
* current one. Thus, if the op is being added, we can
* ignore it because it hasn't attached itself to the rec
- * yet. That means we just need to find the op that has a
- * trampoline and is not beeing added.
+ * yet.
+ *
+ * If an ops is being modified (hooking to different functions)
+ * then we don't care about the new functions that are being
+ * added, just the old ones (that are probably being removed).
+ *
+ * If we are adding an ops to a function that already is using
+ * a trampoline, it needs to be removed (trampolines are only
+ * for single ops connected), then an ops that is not being
+ * modified also needs to be checked.
*/
do_for_each_ftrace_op(op, ftrace_ops_list) {
if (op->flags & FTRACE_OPS_FL_ADDING)
continue;
+
/*
- * If the ops is not being added and has a trampoline,
- * then it must be the one that we want!
+ * If the ops is being modified and is in the old
+ * hash, then it is probably being removed from this
+ * function.
*/
- if (hash_contains_ip(ip, op->func_hash))
- return op;
-
- /* If the ops is being modified, it may be in the old hash. */
if ((op->flags & FTRACE_OPS_FL_MODIFYING) &&
hash_contains_ip(ip, &op->old_hash))
return op;
+ /*
+ * If the ops is not being added or modified, and it's
+ * in its normal filter hash, then this must be the one
+ * we want!
+ */
+ if (!(op->flags & FTRACE_OPS_FL_MODIFYING) &&
+ hash_contains_ip(ip, op->func_hash))
+ return op;
} while_for_each_ftrace_op(op);
FTRACE_WARN_ON(ret);
}
-static void ftrace_run_modify_code(struct ftrace_ops *ops, int command)
+static void ftrace_run_modify_code(struct ftrace_ops *ops, int command,
+ struct ftrace_hash *old_hash)
{
ops->flags |= FTRACE_OPS_FL_MODIFYING;
+ ops->old_hash.filter_hash = old_hash;
ftrace_run_update_code(command);
+ ops->old_hash.filter_hash = NULL;
ops->flags &= ~FTRACE_OPS_FL_MODIFYING;
}
static int ftrace_probe_registered;
-static void __enable_ftrace_function_probe(void)
+static void __enable_ftrace_function_probe(struct ftrace_hash *old_hash)
{
int ret;
int i;
if (ftrace_probe_registered) {
/* still need to update the function call sites */
if (ftrace_enabled)
- ftrace_run_modify_code(&trace_probe_ops, FTRACE_UPDATE_CALLS);
+ ftrace_run_modify_code(&trace_probe_ops, FTRACE_UPDATE_CALLS,
+ old_hash);
return;
}
} while_for_each_ftrace_rec();
ret = ftrace_hash_move(&trace_probe_ops, 1, orig_hash, hash);
+
+ __enable_ftrace_function_probe(old_hash);
+
if (!ret)
free_ftrace_hash_rcu(old_hash);
else
count = ret;
- __enable_ftrace_function_probe();
-
out_unlock:
mutex_unlock(&ftrace_lock);
out:
return add_hash_entry(hash, ip);
}
-static void ftrace_ops_update_code(struct ftrace_ops *ops)
+static void ftrace_ops_update_code(struct ftrace_ops *ops,
+ struct ftrace_hash *old_hash)
{
if (ops->flags & FTRACE_OPS_FL_ENABLED && ftrace_enabled)
- ftrace_run_modify_code(ops, FTRACE_UPDATE_CALLS);
+ ftrace_run_modify_code(ops, FTRACE_UPDATE_CALLS, old_hash);
}
static int
old_hash = *orig_hash;
ret = ftrace_hash_move(ops, enable, orig_hash, hash);
if (!ret) {
- ftrace_ops_update_code(ops);
+ ftrace_ops_update_code(ops, old_hash);
free_ftrace_hash_rcu(old_hash);
}
mutex_unlock(&ftrace_lock);
ret = ftrace_hash_move(iter->ops, filter_hash,
orig_hash, iter->hash);
if (!ret) {
- ftrace_ops_update_code(iter->ops);
+ ftrace_ops_update_code(iter->ops, old_hash);
free_ftrace_hash_rcu(old_hash);
}
mutex_unlock(&ftrace_lock);
lower = src[off + k];
if (left && off + k == lim - 1)
lower &= mask;
- dst[k] = upper << (BITS_PER_LONG - rem) | lower >> rem;
+ dst[k] = lower >> rem;
+ if (rem)
+ dst[k] |= upper << (BITS_PER_LONG - rem);
if (left && k == lim - 1)
dst[k] &= mask;
}
upper = src[k];
if (left && k == lim - 1)
upper &= (1UL << left) - 1;
- dst[k + off] = lower >> (BITS_PER_LONG - rem) | upper << rem;
+ dst[k + off] = upper << rem;
+ if (rem)
+ dst[k + off] |= lower >> (BITS_PER_LONG - rem);
if (left && k + off == lim - 1)
dst[k + off] &= (1UL << left) - 1;
}
}
table->orig_nents -= sg_size;
- if (!skip_first_chunk) {
- free_fn(sgl, alloc_size);
+ if (skip_first_chunk)
skip_first_chunk = false;
- }
+ else
+ free_fn(sgl, alloc_size);
sgl = next;
}
* to be released by the balloon driver.
*/
if (trylock_page(page)) {
+#ifdef CONFIG_BALLOON_COMPACTION
if (!PagePrivate(page)) {
/* raced with isolation */
unlock_page(page);
continue;
}
+#endif
spin_lock_irqsave(&b_dev_info->pages_lock, flags);
balloon_page_delete(page);
__count_vm_event(BALLOON_DEFLATE);
cc->nr_migratepages = 0;
break;
}
+
+ if (cc->nr_migratepages == COMPACT_CLUSTER_MAX)
+ break;
}
acct_isolated(cc->zone, cc);
preempt_disable();
if (cmpxchg(&huge_zero_page, NULL, zero_page)) {
preempt_enable();
- __free_page(zero_page);
+ __free_pages(zero_page, compound_order(zero_page));
goto retry;
}
if (atomic_cmpxchg(&huge_zero_refcount, 1, 0) == 1) {
struct page *zero_page = xchg(&huge_zero_page, NULL);
BUG_ON(zero_page == NULL);
- __free_page(zero_page);
+ __free_pages(zero_page, compound_order(zero_page));
return HPAGE_PMD_NR;
}
return VM_FAULT_FALLBACK;
if (unlikely(anon_vma_prepare(vma)))
return VM_FAULT_OOM;
- if (unlikely(khugepaged_enter(vma)))
+ if (unlikely(khugepaged_enter(vma, vma->vm_flags)))
return VM_FAULT_OOM;
if (!(flags & FAULT_FLAG_WRITE) &&
transparent_hugepage_use_zero_page()) {
* register it here without waiting a page fault that
* may not happen any time soon.
*/
- if (unlikely(khugepaged_enter_vma_merge(vma)))
+ if (unlikely(khugepaged_enter_vma_merge(vma, *vm_flags)))
return -ENOMEM;
break;
case MADV_NOHUGEPAGE:
return 0;
}
-int khugepaged_enter_vma_merge(struct vm_area_struct *vma)
+int khugepaged_enter_vma_merge(struct vm_area_struct *vma,
+ unsigned long vm_flags)
{
unsigned long hstart, hend;
if (!vma->anon_vma)
if (vma->vm_ops)
/* khugepaged not yet working on file or special mappings */
return 0;
- VM_BUG_ON_VMA(vma->vm_flags & VM_NO_THP, vma);
+ VM_BUG_ON_VMA(vm_flags & VM_NO_THP, vma);
hstart = (vma->vm_start + ~HPAGE_PMD_MASK) & HPAGE_PMD_MASK;
hend = vma->vm_end & HPAGE_PMD_MASK;
if (hstart < hend)
- return khugepaged_enter(vma);
+ return khugepaged_enter(vma, vm_flags);
return 0;
}
* start move here.
*/
-/* for quick checking without looking up memcg */
-atomic_t memcg_moving __read_mostly;
-
static void mem_cgroup_start_move(struct mem_cgroup *memcg)
{
- atomic_inc(&memcg_moving);
atomic_inc(&memcg->moving_account);
synchronize_rcu();
}
* Now, mem_cgroup_clear_mc() may call this function with NULL.
* We check NULL in callee rather than caller.
*/
- if (memcg) {
- atomic_dec(&memcg_moving);
+ if (memcg)
atomic_dec(&memcg->moving_account);
- }
}
/*
return true;
}
-/*
- * Used to update mapped file or writeback or other statistics.
+/**
+ * mem_cgroup_begin_page_stat - begin a page state statistics transaction
+ * @page: page that is going to change accounted state
+ * @locked: &memcg->move_lock slowpath was taken
+ * @flags: IRQ-state flags for &memcg->move_lock
*
- * Notes: Race condition
+ * This function must mark the beginning of an accounted page state
+ * change to prevent double accounting when the page is concurrently
+ * being moved to another memcg:
*
- * Charging occurs during page instantiation, while the page is
- * unmapped and locked in page migration, or while the page table is
- * locked in THP migration. No race is possible.
+ * memcg = mem_cgroup_begin_page_stat(page, &locked, &flags);
+ * if (TestClearPageState(page))
+ * mem_cgroup_update_page_stat(memcg, state, -1);
+ * mem_cgroup_end_page_stat(memcg, locked, flags);
*
- * Uncharge happens to pages with zero references, no race possible.
+ * The RCU lock is held throughout the transaction. The fast path can
+ * get away without acquiring the memcg->move_lock (@locked is false)
+ * because page moving starts with an RCU grace period.
*
- * Charge moving between groups is protected by checking mm->moving
- * account and taking the move_lock in the slowpath.
+ * The RCU lock also protects the memcg from being freed when the page
+ * state that is going to change is the only thing preventing the page
+ * from being uncharged. E.g. end-writeback clearing PageWriteback(),
+ * which allows migration to go ahead and uncharge the page before the
+ * account transaction might be complete.
*/
-
-void __mem_cgroup_begin_update_page_stat(struct page *page,
- bool *locked, unsigned long *flags)
+struct mem_cgroup *mem_cgroup_begin_page_stat(struct page *page,
+ bool *locked,
+ unsigned long *flags)
{
struct mem_cgroup *memcg;
struct page_cgroup *pc;
+ rcu_read_lock();
+
+ if (mem_cgroup_disabled())
+ return NULL;
+
pc = lookup_page_cgroup(page);
again:
memcg = pc->mem_cgroup;
if (unlikely(!memcg || !PageCgroupUsed(pc)))
- return;
- /*
- * If this memory cgroup is not under account moving, we don't
- * need to take move_lock_mem_cgroup(). Because we already hold
- * rcu_read_lock(), any calls to move_account will be delayed until
- * rcu_read_unlock().
- */
- VM_BUG_ON(!rcu_read_lock_held());
+ return NULL;
+
+ *locked = false;
if (atomic_read(&memcg->moving_account) <= 0)
- return;
+ return memcg;
move_lock_mem_cgroup(memcg, flags);
if (memcg != pc->mem_cgroup || !PageCgroupUsed(pc)) {
goto again;
}
*locked = true;
+
+ return memcg;
}
-void __mem_cgroup_end_update_page_stat(struct page *page, unsigned long *flags)
+/**
+ * mem_cgroup_end_page_stat - finish a page state statistics transaction
+ * @memcg: the memcg that was accounted against
+ * @locked: value received from mem_cgroup_begin_page_stat()
+ * @flags: value received from mem_cgroup_begin_page_stat()
+ */
+void mem_cgroup_end_page_stat(struct mem_cgroup *memcg, bool locked,
+ unsigned long flags)
{
- struct page_cgroup *pc = lookup_page_cgroup(page);
+ if (memcg && locked)
+ move_unlock_mem_cgroup(memcg, &flags);
- /*
- * It's guaranteed that pc->mem_cgroup never changes while
- * lock is held because a routine modifies pc->mem_cgroup
- * should take move_lock_mem_cgroup().
- */
- move_unlock_mem_cgroup(pc->mem_cgroup, flags);
+ rcu_read_unlock();
}
-void mem_cgroup_update_page_stat(struct page *page,
+/**
+ * mem_cgroup_update_page_stat - update page state statistics
+ * @memcg: memcg to account against
+ * @idx: page state item to account
+ * @val: number of pages (positive or negative)
+ *
+ * See mem_cgroup_begin_page_stat() for locking requirements.
+ */
+void mem_cgroup_update_page_stat(struct mem_cgroup *memcg,
enum mem_cgroup_stat_index idx, int val)
{
- struct mem_cgroup *memcg;
- struct page_cgroup *pc = lookup_page_cgroup(page);
- unsigned long uninitialized_var(flags);
-
- if (mem_cgroup_disabled())
- return;
-
VM_BUG_ON(!rcu_read_lock_held());
- memcg = pc->mem_cgroup;
- if (unlikely(!memcg || !PageCgroupUsed(pc)))
- return;
- this_cpu_add(memcg->stat->count[idx], val);
+ if (memcg)
+ this_cpu_add(memcg->stat->count[idx], val);
}
/*
print_bad_pte(vma, addr, ptent, page);
if (unlikely(!__tlb_remove_page(tlb, page))) {
force_flush = 1;
+ addr += PAGE_SIZE;
break;
}
continue;
unsigned long start_pfn = pgdat->node_start_pfn;
unsigned long end_pfn = start_pfn + pgdat->node_spanned_pages;
unsigned long pfn;
- struct page *pgdat_page = virt_to_page(pgdat);
int i;
for (pfn = start_pfn; pfn < end_pfn; pfn += PAGES_PER_SECTION) {
node_set_offline(nid);
unregister_one_node(nid);
- if (!PageSlab(pgdat_page) && !PageCompound(pgdat_page))
- /* node data is allocated from boot memory */
- return;
-
/* free waittable in each zone */
for (i = 0; i < MAX_NR_ZONES; i++) {
struct zone *zone = pgdat->node_zones + i;
end, prev->vm_pgoff, NULL);
if (err)
return NULL;
- khugepaged_enter_vma_merge(prev);
+ khugepaged_enter_vma_merge(prev, vm_flags);
return prev;
}
next->vm_pgoff - pglen, NULL);
if (err)
return NULL;
- khugepaged_enter_vma_merge(area);
+ khugepaged_enter_vma_merge(area, vm_flags);
return area;
}
}
}
vma_unlock_anon_vma(vma);
- khugepaged_enter_vma_merge(vma);
+ khugepaged_enter_vma_merge(vma, vma->vm_flags);
validate_mm(vma->vm_mm);
return error;
}
}
}
vma_unlock_anon_vma(vma);
- khugepaged_enter_vma_merge(vma);
+ khugepaged_enter_vma_merge(vma, vma->vm_flags);
validate_mm(vma->vm_mm);
return error;
}
}
EXPORT_SYMBOL(account_page_dirtied);
-/*
- * Helper function for set_page_writeback family.
- *
- * The caller must hold mem_cgroup_begin/end_update_page_stat() lock
- * while calling this function.
- * See test_set_page_writeback for example.
- *
- * NOTE: Unlike account_page_dirtied this does not rely on being atomic
- * wrt interrupts.
- */
-void account_page_writeback(struct page *page)
-{
- mem_cgroup_inc_page_stat(page, MEM_CGROUP_STAT_WRITEBACK);
- inc_zone_page_state(page, NR_WRITEBACK);
-}
-EXPORT_SYMBOL(account_page_writeback);
-
/*
* For address_spaces which do not use buffers. Just tag the page as dirty in
* its radix tree.
int test_clear_page_writeback(struct page *page)
{
struct address_space *mapping = page_mapping(page);
- int ret;
- bool locked;
unsigned long memcg_flags;
+ struct mem_cgroup *memcg;
+ bool locked;
+ int ret;
- mem_cgroup_begin_update_page_stat(page, &locked, &memcg_flags);
+ memcg = mem_cgroup_begin_page_stat(page, &locked, &memcg_flags);
if (mapping) {
struct backing_dev_info *bdi = mapping->backing_dev_info;
unsigned long flags;
ret = TestClearPageWriteback(page);
}
if (ret) {
- mem_cgroup_dec_page_stat(page, MEM_CGROUP_STAT_WRITEBACK);
+ mem_cgroup_dec_page_stat(memcg, MEM_CGROUP_STAT_WRITEBACK);
dec_zone_page_state(page, NR_WRITEBACK);
inc_zone_page_state(page, NR_WRITTEN);
}
- mem_cgroup_end_update_page_stat(page, &locked, &memcg_flags);
+ mem_cgroup_end_page_stat(memcg, locked, memcg_flags);
return ret;
}
int __test_set_page_writeback(struct page *page, bool keep_write)
{
struct address_space *mapping = page_mapping(page);
- int ret;
- bool locked;
unsigned long memcg_flags;
+ struct mem_cgroup *memcg;
+ bool locked;
+ int ret;
- mem_cgroup_begin_update_page_stat(page, &locked, &memcg_flags);
+ memcg = mem_cgroup_begin_page_stat(page, &locked, &memcg_flags);
if (mapping) {
struct backing_dev_info *bdi = mapping->backing_dev_info;
unsigned long flags;
} else {
ret = TestSetPageWriteback(page);
}
- if (!ret)
- account_page_writeback(page);
- mem_cgroup_end_update_page_stat(page, &locked, &memcg_flags);
+ if (!ret) {
+ mem_cgroup_inc_page_stat(memcg, MEM_CGROUP_STAT_WRITEBACK);
+ inc_zone_page_state(page, NR_WRITEBACK);
+ }
+ mem_cgroup_end_page_stat(memcg, locked, memcg_flags);
return ret;
}
sizeof(struct page_cgroup) * PAGES_PER_SECTION;
BUG_ON(PageReserved(page));
+ kmemleak_free(addr);
free_pages_exact(addr, table_size);
}
}
*/
void page_add_file_rmap(struct page *page)
{
- bool locked;
+ struct mem_cgroup *memcg;
unsigned long flags;
+ bool locked;
- mem_cgroup_begin_update_page_stat(page, &locked, &flags);
+ memcg = mem_cgroup_begin_page_stat(page, &locked, &flags);
if (atomic_inc_and_test(&page->_mapcount)) {
__inc_zone_page_state(page, NR_FILE_MAPPED);
- mem_cgroup_inc_page_stat(page, MEM_CGROUP_STAT_FILE_MAPPED);
+ mem_cgroup_inc_page_stat(memcg, MEM_CGROUP_STAT_FILE_MAPPED);
}
- mem_cgroup_end_update_page_stat(page, &locked, &flags);
+ mem_cgroup_end_page_stat(memcg, locked, flags);
+}
+
+static void page_remove_file_rmap(struct page *page)
+{
+ struct mem_cgroup *memcg;
+ unsigned long flags;
+ bool locked;
+
+ memcg = mem_cgroup_begin_page_stat(page, &locked, &flags);
+
+ /* page still mapped by someone else? */
+ if (!atomic_add_negative(-1, &page->_mapcount))
+ goto out;
+
+ /* Hugepages are not counted in NR_FILE_MAPPED for now. */
+ if (unlikely(PageHuge(page)))
+ goto out;
+
+ /*
+ * We use the irq-unsafe __{inc|mod}_zone_page_stat because
+ * these counters are not modified in interrupt context, and
+ * pte lock(a spinlock) is held, which implies preemption disabled.
+ */
+ __dec_zone_page_state(page, NR_FILE_MAPPED);
+ mem_cgroup_dec_page_stat(memcg, MEM_CGROUP_STAT_FILE_MAPPED);
+
+ if (unlikely(PageMlocked(page)))
+ clear_page_mlock(page);
+out:
+ mem_cgroup_end_page_stat(memcg, locked, flags);
}
/**
*/
void page_remove_rmap(struct page *page)
{
- bool anon = PageAnon(page);
- bool locked;
- unsigned long flags;
-
- /*
- * The anon case has no mem_cgroup page_stat to update; but may
- * uncharge_page() below, where the lock ordering can deadlock if
- * we hold the lock against page_stat move: so avoid it on anon.
- */
- if (!anon)
- mem_cgroup_begin_update_page_stat(page, &locked, &flags);
+ if (!PageAnon(page)) {
+ page_remove_file_rmap(page);
+ return;
+ }
/* page still mapped by someone else? */
if (!atomic_add_negative(-1, &page->_mapcount))
- goto out;
+ return;
+
+ /* Hugepages are not counted in NR_ANON_PAGES for now. */
+ if (unlikely(PageHuge(page)))
+ return;
/*
- * Hugepages are not counted in NR_ANON_PAGES nor NR_FILE_MAPPED
- * and not charged by memcg for now.
- *
* We use the irq-unsafe __{inc|mod}_zone_page_stat because
* these counters are not modified in interrupt context, and
- * these counters are not modified in interrupt context, and
* pte lock(a spinlock) is held, which implies preemption disabled.
*/
- if (unlikely(PageHuge(page)))
- goto out;
- if (anon) {
- if (PageTransHuge(page))
- __dec_zone_page_state(page,
- NR_ANON_TRANSPARENT_HUGEPAGES);
- __mod_zone_page_state(page_zone(page), NR_ANON_PAGES,
- -hpage_nr_pages(page));
- } else {
- __dec_zone_page_state(page, NR_FILE_MAPPED);
- mem_cgroup_dec_page_stat(page, MEM_CGROUP_STAT_FILE_MAPPED);
- mem_cgroup_end_update_page_stat(page, &locked, &flags);
- }
+ if (PageTransHuge(page))
+ __dec_zone_page_state(page, NR_ANON_TRANSPARENT_HUGEPAGES);
+
+ __mod_zone_page_state(page_zone(page), NR_ANON_PAGES,
+ -hpage_nr_pages(page));
+
if (unlikely(PageMlocked(page)))
clear_page_mlock(page);
+
/*
* It would be tidy to reset the PageAnon mapping here,
* but that might overwrite a racing page_add_anon_rmap
* Leaving it set also helps swapoff to reinstate ptes
* faster for those pages still in swapcache.
*/
- return;
-out:
- if (!anon)
- mem_cgroup_end_update_page_stat(page, &locked, &flags);
}
/*
s->object_size);
continue;
}
-
-#if !defined(CONFIG_SLUB)
- if (!strcmp(s->name, name)) {
- pr_err("%s (%s): Cache name already exists.\n",
- __func__, name);
- dump_stack();
- s = NULL;
- return -EINVAL;
- }
-#endif
}
WARN_ON(strchr(name, ' ')); /* It confuses parsers */
{
const struct evm_ima_xattr_data *xattr_data = xattr_value;
- if ((strcmp(xattr_name, XATTR_NAME_EVM) == 0)
- && (xattr_data->type == EVM_XATTR_HMAC))
- return -EPERM;
+ if (strcmp(xattr_name, XATTR_NAME_EVM) == 0) {
+ if (!xattr_value_len)
+ return -EINVAL;
+ if (xattr_data->type != EVM_IMA_XATTR_DIGSIG)
+ return -EPERM;
+ }
return evm_protect_xattr(dentry, xattr_name, xattr_value,
xattr_value_len);
}
result = ima_protect_xattr(dentry, xattr_name, xattr_value,
xattr_value_len);
if (result == 1) {
+ if (!xattr_value_len || (xvalue->type >= IMA_XATTR_LAST))
+ return -EINVAL;
ima_reset_appraise_flags(dentry->d_inode,
(xvalue->type == EVM_IMA_XATTR_DIGSIG) ? 1 : 0);
result = 0;
EVM_XATTR_HMAC,
EVM_IMA_XATTR_DIGSIG,
IMA_XATTR_DIGEST_NG,
+ IMA_XATTR_LAST
};
struct evm_ima_xattr_data {
git.openpandora.org / pandora-kernel.git / commitdiff