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>

arch/powerpc/include/asm/code-patching.h

@@ -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);

arch/powerpc/lib/code-patching.c

@@ -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)
 {
 	/*