From 89092c61bc37ed61bfacf10433d52b9bc4299116 Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Fri, 7 Jan 2022 01:33:46 +0100 Subject: [PATCH] powertop: fix cpuid asm: ebx saving/restoring is properly done by gcc function old new delta print_intel_cstates 481 477 -4 Signed-off-by: Denys Vlasenko --- procps/powertop.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/procps/powertop.c b/procps/powertop.c index 24c2b320f..18ddaa3ec 100644 --- a/procps/powertop.c +++ b/procps/powertop.c @@ -506,12 +506,9 @@ static void cpuid(unsigned int *eax, unsigned int *ebx, unsigned int *ecx, { /* EAX value specifies what information to return */ asm ( - " pushl %%ebx\n" /* Save EBX */ " cpuid\n" - " movl %%ebx, %1\n" /* Save content of EBX */ - " popl %%ebx\n" /* Restore EBX */ : "=a"(*eax), /* Output */ - "=r"(*ebx), + "=b"(*ebx), "=c"(*ecx), "=d"(*edx) : "0"(*eax), /* Input */