Commit c3a3cb5c authored by Borislav Petkov (AMD)'s avatar Borislav Petkov (AMD)
Browse files

x86/alternatives: Optimize optimize_nops() 



Return early if NOPs have already been optimized.

Signed-off-by: default avatarBorislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20240130105941.19707-4-bp@alien8.de
parent da8f9cf7

arch/x86/kernel/alternative.c

+4 −0
Original line number Diff line number Diff line
@@ -233,6 +233,10 @@ static void noinline optimize_nops(const u8 * const instr, u8 *buf, size_t len) 
		if (insn_is_nop(&insn)) {

			int nop = i;



			/* Has the NOP already been optimized? */

			if (i + insn.length == len)

				return;



			next = skip_nops(buf, next, len);



			add_nop(buf + nop, next - nop);