[PATCH] qualifiers in return types - easy cases

a bunch of functions switched from volatile to __attribute__((noreturn)) and
from const to __attribute_pure__

Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index d571c37..4554c96 100644 (file)
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -617,7 +617,7 @@ baddataabort(int code, unsigned long instr, struct pt_regs *regs)
        notify_die("unknown data abort code", regs, &info, instr, 0);
 }
 
-volatile void __bug(const char *file, int line, void *data)
+void __attribute__((noreturn)) __bug(const char *file, int line, void *data)
 {
        printk(KERN_CRIT"kernel BUG at %s:%d!", file, line);
        if (data)

diff --git a/arch/arm/nwfpe/fpopcode.h b/arch/arm/nwfpe/fpopcode.h
index 8035f4f..1777e92 100644 (file)
--- a/arch/arm/nwfpe/fpopcode.h
+++ b/arch/arm/nwfpe/fpopcode.h
@@ -370,20 +370,20 @@ TABLE 5
 #define getRoundingMode(opcode)                ((opcode & MASK_ROUNDING_MODE) >> 5)
 
 #ifdef CONFIG_FPE_NWFPE_XP
-static inline const floatx80 getExtendedConstant(const unsigned int nIndex)
+static inline __attribute_pure__ floatx80 getExtendedConstant(const unsigned int nIndex)
 {
        extern const floatx80 floatx80Constant[];
        return floatx80Constant[nIndex];
 }
 #endif
 
-static inline const float64 getDoubleConstant(const unsigned int nIndex)
+static inline __attribute_pure__ float64 getDoubleConstant(const unsigned int nIndex)
 {
        extern const float64 float64Constant[];
        return float64Constant[nIndex];
 }
 
-static inline const float32 getSingleConstant(const unsigned int nIndex)
+static inline __attribute_pure__ float32 getSingleConstant(const unsigned int nIndex)
 {
        extern const float32 float32Constant[];
        return float32Constant[nIndex];

diff --git a/include/asm-arm/bug.h b/include/asm-arm/bug.h
index 24d1167..7fb0213 100644 (file)
--- a/include/asm-arm/bug.h
+++ b/include/asm-arm/bug.h
@@ -5,7 +5,7 @@
 
 #ifdef CONFIG_BUG
 #ifdef CONFIG_DEBUG_BUGVERBOSE
-extern volatile void __bug(const char *file, int line, void *data);
+extern void __bug(const char *file, int line, void *data) __attribute__((noreturn));
 
 /* give file/line information */
 #define BUG()          __bug(__FILE__, __LINE__, NULL)

diff --git a/include/asm-arm/cpu-multi32.h b/include/asm-arm/cpu-multi32.h
index ff48022..4679f63 100644 (file)
--- a/include/asm-arm/cpu-multi32.h
+++ b/include/asm-arm/cpu-multi32.h
@@ -31,7 +31,7 @@ extern struct processor {
        /*
         * Special stuff for a reset
         */
-       volatile void (*reset)(unsigned long addr);
+       void (*reset)(unsigned long addr) __attribute__((noreturn));
        /*
         * Idle the processor
         */

diff --git a/include/asm-arm/cpu-single.h b/include/asm-arm/cpu-single.h
index b5ec5d5..6723e67 100644 (file)
--- a/include/asm-arm/cpu-single.h
+++ b/include/asm-arm/cpu-single.h
@@ -41,4 +41,4 @@ extern int cpu_do_idle(void);
 extern void cpu_dcache_clean_area(void *, int);
 extern void cpu_do_switch_mm(unsigned long pgd_phys, struct mm_struct *mm);
 extern void cpu_set_pte(pte_t *ptep, pte_t pte);
-extern volatile void cpu_reset(unsigned long addr);
+extern void cpu_reset(unsigned long addr) __attribute__((noreturn));

diff --git a/include/asm-ppc/time.h b/include/asm-ppc/time.h
index ce09b47..321fb75 100644 (file)
--- a/include/asm-ppc/time.h
+++ b/include/asm-ppc/time.h
@@ -58,7 +58,7 @@ static __inline__ void set_dec(unsigned int val)
 /* Accessor functions for the timebase (RTC on 601) registers. */
 /* If one day CONFIG_POWER is added just define __USE_RTC as 1 */
 #ifdef CONFIG_6xx
-extern __inline__ int const __USE_RTC(void) {
+extern __inline__ int __attribute_pure__ __USE_RTC(void) {
        return (mfspr(SPRN_PVR)>>16) == 1;
 }
 #else