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powerpc: simplify patch_instruction_site() and patch_branch_site() 

Using patch_site_addr() helper, patch_instruction_site() and
patch_branch_site() can be simplified and inlined.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Christophe Leroy 2018-11-09 17:33:15 +00:00 committed by Michael Ellerman
parent 584dbc7727
commit 45090c2661
2 changed files with 10 additions and 18 deletions
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12
arch/powerpc/include/asm/code-patching.h
View File

@ -33,14 +33,22 @@ unsigned int create_cond_branch(const unsigned int *addr,
int patch_branch(unsigned int *addr, unsigned long target, int flags);
int patch_instruction(unsigned int *addr, unsigned int instr);
int raw_patch_instruction(unsigned int *addr, unsigned int instr);
int patch_instruction_site(s32 *addr, unsigned int instr);
int patch_branch_site(s32 *site, unsigned long target, int flags);
static inline unsigned long patch_site_addr(s32 *site)
{
return (unsigned long)site + *site;
}
static inline int patch_instruction_site(s32 *site, unsigned int instr)
{
return patch_instruction((unsigned int *)patch_site_addr(site), instr);
}
static inline int patch_branch_site(s32 *site, unsigned long target, int flags)
{
return patch_branch((unsigned int *)patch_site_addr(site), target, flags);
}
int instr_is_relative_branch(unsigned int instr);
int instr_is_relative_link_branch(unsigned int instr);
int instr_is_branch_to_addr(const unsigned int *instr, unsigned long addr);

16
arch/powerpc/lib/code-patching.c
View File

@ -204,22 +204,6 @@ int patch_branch(unsigned int *addr, unsigned long target, int flags)
return patch_instruction(addr, create_branch(addr, target, flags));
}
int patch_branch_site(s32 *site, unsigned long target, int flags)
{
unsigned int *addr;
addr = (unsigned int *)((unsigned long)site + *site);
return patch_instruction(addr, create_branch(addr, target, flags));
}
int patch_instruction_site(s32 *site, unsigned int instr)
{
unsigned int *addr;
addr = (unsigned int *)((unsigned long)site + *site);
return patch_instruction(addr, instr);
}
bool is_offset_in_branch_range(long offset)
{
/*