[PATCH v1 1/3] arm64: module: move find_section to header

[Mark Rutland]

On Thu, Aug 25, 2022 at 11:20:23AM +0100, Joey Gouly wrote:
> Move it to the header so that the implementation can be shared
> by the alternatives code.
> 
> Signed-off-by: Joey Gouly <joey.gouly at arm.com>
> Cc: Catalin Marinas <catalin.marinas at arm.com>
> Cc: Will Deacon <will at kernel.org>

Acked-by: Mark Rutland <mark.rutland at arm.com>

Mark.

> ---
>  arch/arm64/include/asm/module.h | 15 +++++++++++++++
>  arch/arm64/kernel/module.c      | 15 ---------------
>  2 files changed, 15 insertions(+), 15 deletions(-)
> 
> diff --git a/arch/arm64/include/asm/module.h b/arch/arm64/include/asm/module.h
> index 4e7fa2623896..22f1be47cc92 100644
> --- a/arch/arm64/include/asm/module.h
> +++ b/arch/arm64/include/asm/module.h
> @@ -65,4 +65,19 @@ static inline bool plt_entry_is_initialized(const struct plt_entry *e)
>  	return e->adrp || e->add || e->br;
>  }
>  
> +static inline const Elf_Shdr *find_section(const Elf_Ehdr *hdr,
> +				    const Elf_Shdr *sechdrs,
> +				    const char *name)
> +{
> +	const Elf_Shdr *s, *se;
> +	const char *secstrs = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
> +
> +	for (s = sechdrs, se = sechdrs + hdr->e_shnum; s < se; s++) {
> +		if (strcmp(name, secstrs + s->sh_name) == 0)
> +			return s;
> +	}
> +
> +	return NULL;
> +}
> +
>  #endif /* __ASM_MODULE_H */
> diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c
> index f2d4bb14bfab..76b41e4ca9fa 100644
> --- a/arch/arm64/kernel/module.c
> +++ b/arch/arm64/kernel/module.c
> @@ -476,21 +476,6 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
>  	return -ENOEXEC;
>  }
>  
> -static const Elf_Shdr *find_section(const Elf_Ehdr *hdr,
> -				    const Elf_Shdr *sechdrs,
> -				    const char *name)
> -{
> -	const Elf_Shdr *s, *se;
> -	const char *secstrs = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
> -
> -	for (s = sechdrs, se = sechdrs + hdr->e_shnum; s < se; s++) {
> -		if (strcmp(name, secstrs + s->sh_name) == 0)
> -			return s;
> -	}
> -
> -	return NULL;
> -}
> -
>  static inline void __init_plt(struct plt_entry *plt, unsigned long addr)
>  {
>  	*plt = get_plt_entry(addr, plt);
> -- 
> 2.17.1
>