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Commit dd18434f authored by Paul Mackerras's avatar Paul Mackerras
Browse files

[POWERPC] Use __always_inline for xchg* and cmpxchg* 



This changes the definitions of the xchg and cmpxchg families of
functions in include/asm-powerpc/system.h to be marked __always_inline
rather than __inline__.  The reason for doing this is that we rely on
the compiler inlining them in order to eliminate the references to
__xchg_called_with_bad_pointer and __cmpxchg_called_with_bad_pointer,
which are deliberately left undefined.  Thus this change will enable
us to make the inline keyword be just a hint rather than a directive.

Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 745a14cc

include/asm-powerpc/system.h

+12 −12
Original line number Diff line number Diff line
@@ -204,7 +204,7 @@ extern int powersave_nap; /* set if nap mode can be used in idle loop */ 
 * Changes the memory location '*ptr' to be val and returns

 * the previous value stored there.

 */

static __inline__ unsigned long

static __always_inline unsigned long

__xchg_u32(volatile void *p, unsigned long val)

{

	unsigned long prev;
@@ -229,7 +229,7 @@ __xchg_u32(volatile void *p, unsigned long val) 
 * Changes the memory location '*ptr' to be val and returns

 * the previous value stored there.

 */

static __inline__ unsigned long

static __always_inline unsigned long

__xchg_u32_local(volatile void *p, unsigned long val)

{

	unsigned long prev;
@@ -247,7 +247,7 @@ __xchg_u32_local(volatile void *p, unsigned long val) 
}



#ifdef CONFIG_PPC64

static __inline__ unsigned long

static __always_inline unsigned long

__xchg_u64(volatile void *p, unsigned long val)

{

	unsigned long prev;
@@ -266,7 +266,7 @@ __xchg_u64(volatile void *p, unsigned long val) 
	return prev;

}



static __inline__ unsigned long

static __always_inline unsigned long

__xchg_u64_local(volatile void *p, unsigned long val)

{

	unsigned long prev;
@@ -290,7 +290,7 @@ __xchg_u64_local(volatile void *p, unsigned long val) 
 */

extern void __xchg_called_with_bad_pointer(void);



static __inline__ unsigned long

static __always_inline unsigned long

__xchg(volatile void *ptr, unsigned long x, unsigned int size)

{

	switch (size) {
@@ -305,7 +305,7 @@ __xchg(volatile void *ptr, unsigned long x, unsigned int size) 
	return x;

}



static __inline__ unsigned long

static __always_inline unsigned long

__xchg_local(volatile void *ptr, unsigned long x, unsigned int size)

{

	switch (size) {
@@ -338,7 +338,7 @@ __xchg_local(volatile void *ptr, unsigned long x, unsigned int size) 
 */

#define __HAVE_ARCH_CMPXCHG	1



static __inline__ unsigned long

static __always_inline unsigned long

__cmpxchg_u32(volatile unsigned int *p, unsigned long old, unsigned long new)

{

	unsigned int prev;
@@ -361,7 +361,7 @@ __cmpxchg_u32(volatile unsigned int *p, unsigned long old, unsigned long new) 
	return prev;

}



static __inline__ unsigned long

static __always_inline unsigned long

__cmpxchg_u32_local(volatile unsigned int *p, unsigned long old,

			unsigned long new)

{
@@ -384,7 +384,7 @@ __cmpxchg_u32_local(volatile unsigned int *p, unsigned long old, 
}



#ifdef CONFIG_PPC64

static __inline__ unsigned long

static __always_inline unsigned long

__cmpxchg_u64(volatile unsigned long *p, unsigned long old, unsigned long new)

{

	unsigned long prev;
@@ -406,7 +406,7 @@ __cmpxchg_u64(volatile unsigned long *p, unsigned long old, unsigned long new) 
	return prev;

}



static __inline__ unsigned long

static __always_inline unsigned long

__cmpxchg_u64_local(volatile unsigned long *p, unsigned long old,

			unsigned long new)

{
@@ -432,7 +432,7 @@ __cmpxchg_u64_local(volatile unsigned long *p, unsigned long old, 
   if something tries to do an invalid cmpxchg().  */

extern void __cmpxchg_called_with_bad_pointer(void);



static __inline__ unsigned long

static __always_inline unsigned long

__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new,

	  unsigned int size)

{
@@ -448,7 +448,7 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, 
	return old;

}



static __inline__ unsigned long

static __always_inline unsigned long

__cmpxchg_local(volatile void *ptr, unsigned long old, unsigned long new,

	  unsigned int size)

{