diff mbox series

modpost: remove unused Elf_Sword macro

Message ID 20220726165204.3363120-1-masahiroy@kernel.org (mailing list archive)
State New, archived
Headers show
Series modpost: remove unused Elf_Sword macro | expand

Commit Message

Masahiro Yamada July 26, 2022, 4:52 p.m. UTC
Commit 9ad21c3f3ecf ("kbuild: try harder to find symbol names in
modpost") added Elf_Sword (in a wrong way), but did not use it at all.

BTW, the current code looks weird.

The fix for the 32-bit part would be:

    Elf64_Sword    -->    Elf32_Sword

(weirdness in the prefix, Elf32_ vs Elf64_)

The fix for the 64-bit part would be:

    Elf64_Sxword   -->    Elf64_Sword

(the size is different between Sword and Sxword)

Note:

    Elf32_Sword   ==  Elf64_Sword   ==  int32_t
    Elf32_Sxword  ==  Elf64_Sxword  ==  int64_t

Anyway, let's drop unused code instead of fixing it.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---

 scripts/mod/modpost.h | 2 --
 1 file changed, 2 deletions(-)

Comments

Nick Desaulniers Aug. 2, 2022, 5:35 p.m. UTC | #1
On Tue, Jul 26, 2022 at 9:53 AM Masahiro Yamada <masahiroy@kernel.org> wrote:
>
> Commit 9ad21c3f3ecf ("kbuild: try harder to find symbol names in
> modpost") added Elf_Sword (in a wrong way), but did not use it at all.
>
> BTW, the current code looks weird.
>
> The fix for the 32-bit part would be:
>
>     Elf64_Sword    -->    Elf32_Sword
>
> (weirdness in the prefix, Elf32_ vs Elf64_)
>
> The fix for the 64-bit part would be:
>
>     Elf64_Sxword   -->    Elf64_Sword
>
> (the size is different between Sword and Sxword)
>
> Note:
>
>     Elf32_Sword   ==  Elf64_Sword   ==  int32_t
>     Elf32_Sxword  ==  Elf64_Sxword  ==  int64_t
>
> Anyway, let's drop unused code instead of fixing it.
>
> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

Thanks for the patch!
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>

> ---
>
>  scripts/mod/modpost.h | 2 --
>  1 file changed, 2 deletions(-)
>
> diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h
> index 68cd4aeeae3d..620f2fd08e05 100644
> --- a/scripts/mod/modpost.h
> +++ b/scripts/mod/modpost.h
> @@ -26,7 +26,6 @@
>  #define Elf_Shdr    Elf32_Shdr
>  #define Elf_Sym     Elf32_Sym
>  #define Elf_Addr    Elf32_Addr
> -#define Elf_Sword   Elf64_Sword
>  #define Elf_Section Elf32_Half
>  #define ELF_ST_BIND ELF32_ST_BIND
>  #define ELF_ST_TYPE ELF32_ST_TYPE
> @@ -41,7 +40,6 @@
>  #define Elf_Shdr    Elf64_Shdr
>  #define Elf_Sym     Elf64_Sym
>  #define Elf_Addr    Elf64_Addr
> -#define Elf_Sword   Elf64_Sxword
>  #define Elf_Section Elf64_Half
>  #define ELF_ST_BIND ELF64_ST_BIND
>  #define ELF_ST_TYPE ELF64_ST_TYPE
> --
> 2.34.1
>
diff mbox series

Patch

diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h
index 68cd4aeeae3d..620f2fd08e05 100644
--- a/scripts/mod/modpost.h
+++ b/scripts/mod/modpost.h
@@ -26,7 +26,6 @@ 
 #define Elf_Shdr    Elf32_Shdr
 #define Elf_Sym     Elf32_Sym
 #define Elf_Addr    Elf32_Addr
-#define Elf_Sword   Elf64_Sword
 #define Elf_Section Elf32_Half
 #define ELF_ST_BIND ELF32_ST_BIND
 #define ELF_ST_TYPE ELF32_ST_TYPE
@@ -41,7 +40,6 @@ 
 #define Elf_Shdr    Elf64_Shdr
 #define Elf_Sym     Elf64_Sym
 #define Elf_Addr    Elf64_Addr
-#define Elf_Sword   Elf64_Sxword
 #define Elf_Section Elf64_Half
 #define ELF_ST_BIND ELF64_ST_BIND
 #define ELF_ST_TYPE ELF64_ST_TYPE