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powerpc/signal: Remove get_clean_sp()

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get_clean_sp() is only used once in kernel/signal.c .

GCC is smart enough to see that x & 0xffffffff is a nop
calculation on PPC32, no need of a special PPC32 trivial version.

Include the logic from the PPC64 version of get_clean_sp() directly
in get_sigframe().

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/13ef6510ce30a4867e043157b93af5bb8c67fb3b.1597770847.git.christophe.leroy@csgroup.eu
This commit is contained in:
Christophe Leroy 2020-08-18 17:19:21 +00:00 • committed by Michael Ellerman
parent 454b1abb58
commit 0ecbc6ad18
2 changed files with 4 additions and 15 deletions
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14
arch/powerpc/include/asm/processor.h
View file

@ -391,20 +391,6 @@ static inline void prefetchw(const void *x)
#define HAVE_ARCH_PICK_MMAP_LAYOUT
#ifdef CONFIG_PPC64
static inline unsigned long get_clean_sp(unsigned long sp, int is_32)
{
if (is_32)
return sp & 0x0ffffffffUL;
return sp;
}
#else
static inline unsigned long get_clean_sp(unsigned long sp, int is_32)
{
return sp;
}
#endif
/* asm stubs */
extern unsigned long isa300_idle_stop_noloss(unsigned long psscr_val);
extern unsigned long isa300_idle_stop_mayloss(unsigned long psscr_val);