Re: [PATCH] x86/asm: Remove unused COMPILE_OFFSETS macro from asm-offsets.c

From: Kirill A . Shutemov
Date: Mon Nov 28 2022 - 04:15:28 EST


On Sun, Nov 27, 2022 at 03:23:35PM +0900, Vincent Mailhol wrote:
> Following [1], the macro COMPILE_OFFSETS becomes unused:

Really? I see #ifdef COMPILE_OFFSETS in ftrace.h. Hm?

Have you tested your patch with CONFIG_FTRACE_SYSCALLS=y and
CONFIG_IA32_EMULATION=y?

> $ make W=2 arch/x86/kernel/asm-offsets.o
> <...>
> arch/x86/kernel/asm-offsets.c:7: warning: macro "COMPILE_OFFSETS" is not used [-Wunused-macros]
> <...>
>
> Remove COMPILE_OFFSETS macro.
>
> [1] commit debc5a1ec0d1 ("KVM: x86: use a separate asm-offsets.c file")
> Link: https://git.kernel.org/torvalds/linux/c/debc5a1ec0d1
>
> Fixes: debc5a1ec0d1 ("KVM: x86: use a separate asm-offsets.c file")
> Signed-off-by: Vincent Mailhol <mailhol.vincent@xxxxxxxxxx>
> ---
> arch/x86/kernel/asm-offsets.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/arch/x86/kernel/asm-offsets.c b/arch/x86/kernel/asm-offsets.c
> index 437308004ef2..cf2e02bafbef 100644
> --- a/arch/x86/kernel/asm-offsets.c
> +++ b/arch/x86/kernel/asm-offsets.c
> @@ -4,7 +4,6 @@
> * This code generates raw asm output which is post-processed to extract
> * and format the required data.
> */
> -#define COMPILE_OFFSETS
>
> #include <linux/crypto.h>
> #include <linux/sched.h>
> --
> 2.37.4
>

--
Kiryl Shutsemau / Kirill A. Shutemov