UBI: make check_pattern function non-static

This patch turns static function 'check_pattern()' into a non-static
'ubi_check_pattern()'. This is just a preparation for the chages which
are coming in the next patches.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>

diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c
index b762524..c2960ac 100644 (file)
--- a/drivers/mtd/ubi/io.c
+++ b/drivers/mtd/ubi/io.c
@@ -376,25 +376,6 @@ retry:
        return 0;
 }
 
-/**
- * check_pattern - check if buffer contains only a certain byte pattern.
- * @buf: buffer to check
- * @patt: the pattern to check
- * @size: buffer size in bytes
- *
- * This function returns %1 in there are only @patt bytes in @buf, and %0 if
- * something else was also found.
- */
-static int check_pattern(const void *buf, uint8_t patt, int size)
-{
-       int i;
-
-       for (i = 0; i < size; i++)
-               if (((const uint8_t *)buf)[i] != patt)
-                       return 0;
-       return 1;
-}
-
 /* Patterns to write to a physical eraseblock when torturing it */
 static uint8_t patterns[] = {0xa5, 0x5a, 0x0};
 
@@ -426,7 +407,7 @@ static int torture_peb(struct ubi_device *ubi, int pnum)
                if (err)
                        goto out;
 
-               err = check_pattern(ubi->peb_buf1, 0xFF, ubi->peb_size);
+               err = ubi_check_pattern(ubi->peb_buf1, 0xFF, ubi->peb_size);
                if (err == 0) {
                        ubi_err("erased PEB %d, but a non-0xFF byte found",
                                pnum);
@@ -445,7 +426,8 @@ static int torture_peb(struct ubi_device *ubi, int pnum)
                if (err)
                        goto out;
 
-               err = check_pattern(ubi->peb_buf1, patterns[i], ubi->peb_size);
+               err = ubi_check_pattern(ubi->peb_buf1, patterns[i],
+                                       ubi->peb_size);
                if (err == 0) {
                        ubi_err("pattern %x checking failed for PEB %d",
                                patterns[i], pnum);
@@ -752,7 +734,7 @@ int ubi_io_read_ec_hdr(struct ubi_device *ubi, int pnum,
                 * 0xFF. If yes, this physical eraseblock is assumed to be
                 * empty.
                 */
-               if (check_pattern(ec_hdr, 0xFF, UBI_EC_HDR_SIZE)) {
+               if (ubi_check_pattern(ec_hdr, 0xFF, UBI_EC_HDR_SIZE)) {
                        /* The physical eraseblock is supposedly empty */
                        if (verbose)
                                ubi_warn("no EC header found at PEB %d, "
@@ -1009,7 +991,7 @@ int ubi_io_read_vid_hdr(struct ubi_device *ubi, int pnum,
                if (read_err == -EBADMSG)
                        return UBI_IO_BAD_HDR_EBADMSG;
 
-               if (check_pattern(vid_hdr, 0xFF, UBI_VID_HDR_SIZE)) {
+               if (ubi_check_pattern(vid_hdr, 0xFF, UBI_VID_HDR_SIZE)) {
                        if (verbose)
                                ubi_warn("no VID header found at PEB %d, "
                                         "only 0xFF bytes", pnum);
@@ -1363,7 +1345,7 @@ int ubi_dbg_check_all_ff(struct ubi_device *ubi, int pnum, int offset, int len)
                goto error;
        }
 
-       err = check_pattern(ubi->dbg_peb_buf, 0xFF, len);
+       err = ubi_check_pattern(ubi->dbg_peb_buf, 0xFF, len);
        if (err == 0) {
                ubi_err("flash region at PEB %d:%d, length %d does not "
                        "contain all 0xFF bytes", pnum, offset, len);

diff --git a/drivers/mtd/ubi/misc.c b/drivers/mtd/ubi/misc.c
index 22ad314..ff2a65c 100644 (file)
--- a/drivers/mtd/ubi/misc.c
+++ b/drivers/mtd/ubi/misc.c
@@ -103,3 +103,22 @@ void ubi_calculate_reserved(struct ubi_device *ubi)
        if (ubi->beb_rsvd_level < MIN_RESEVED_PEBS)
                ubi->beb_rsvd_level = MIN_RESEVED_PEBS;
 }
+
+/**
+ * ubi_check_pattern - check if buffer contains only a certain byte pattern.
+ * @buf: buffer to check
+ * @patt: the pattern to check
+ * @size: buffer size in bytes
+ *
+ * This function returns %1 in there are only @patt bytes in @buf, and %0 if
+ * something else was also found.
+ */
+int ubi_check_pattern(const void *buf, uint8_t patt, int size)
+{
+       int i;
+
+       for (i = 0; i < size; i++)
+               if (((const uint8_t *)buf)[i] != patt)
+                       return 0;
+       return 1;
+}

diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h
index 1099077..8831d7b 100644 (file)
--- a/drivers/mtd/ubi/ubi.h
+++ b/drivers/mtd/ubi/ubi.h
@@ -511,6 +511,7 @@ int ubi_calc_data_len(const struct ubi_device *ubi, const void *buf,
                      int length);
 int ubi_check_volume(struct ubi_device *ubi, int vol_id);
 void ubi_calculate_reserved(struct ubi_device *ubi);
+int ubi_check_pattern(const void *buf, uint8_t patt, int size);
 
 /* eba.c */
 int ubi_eba_unmap_leb(struct ubi_device *ubi, struct ubi_volume *vol,