Commit 2c920fca authored by Christophe Leroy's avatar Christophe Leroy Committed by Michael Ellerman
Browse files

powerpc/ftrace: Inline ftrace_modify_code() 



Inlining ftrace_modify_code(), it increases a bit the
size of ftrace code but brings 5% improvment on ftrace
activation.

Usually in C files we let gcc decide what to do but here
it really help to 'help' gcc to decide to inline, thought
we don't want to force it with an __always_inline that
would be too much for CONFIG_CC_OPTIMIZE_FOR_SIZE.

Signed-off-by: default avatarChristophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1597a06d57cfc80e6853838c4066e799bf6c7977.1652074503.git.christophe.leroy@csgroup.eu
parent d2f47dab

arch/powerpc/kernel/trace/ftrace.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -53,7 +53,7 @@ ftrace_call_replace(unsigned long ip, unsigned long addr, int link) 
	return op;

	return op;

}

}





static int

static inline int

ftrace_modify_code(unsigned long ip, ppc_inst_t old, ppc_inst_t new)

ftrace_modify_code(unsigned long ip, ppc_inst_t old, ppc_inst_t new)

{

{

	ppc_inst_t replaced;

	ppc_inst_t replaced;