Move it to the header so that the implementation can be shared
by the alternatives code.
Signed-off-by: Jisheng Zhang <[email protected]>
---
arch/riscv/include/asm/module.h | 15 +++++++++++++++
arch/riscv/kernel/module.c | 15 ---------------
2 files changed, 15 insertions(+), 15 deletions(-)
diff --git a/arch/riscv/include/asm/module.h b/arch/riscv/include/asm/module.h
index 76aa96a9fc08..78722a79fc59 100644
--- a/arch/riscv/include/asm/module.h
+++ b/arch/riscv/include/asm/module.h
@@ -111,4 +111,19 @@ static inline struct plt_entry *get_plt_entry(unsigned long val,
#endif /* CONFIG_MODULE_SECTIONS */
+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_RISCV_MODULE_H */
diff --git a/arch/riscv/kernel/module.c b/arch/riscv/kernel/module.c
index 91fe16bfaa07..76f4b9c2ec5b 100644
--- a/arch/riscv/kernel/module.c
+++ b/arch/riscv/kernel/module.c
@@ -429,21 +429,6 @@ void *module_alloc(unsigned long size)
}
#endif
-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;
-}
-
int module_finalize(const Elf_Ehdr *hdr,
const Elf_Shdr *sechdrs,
struct module *me)
--
2.37.2
On Mon, Dec 05, 2022 at 01:46:27AM +0800, Jisheng Zhang wrote:
> Move it to the header so that the implementation can be shared
> by the alternatives code.
>
> Signed-off-by: Jisheng Zhang <[email protected]>
> ---
> arch/riscv/include/asm/module.h | 15 +++++++++++++++
> arch/riscv/kernel/module.c | 15 ---------------
> 2 files changed, 15 insertions(+), 15 deletions(-)
>
> diff --git a/arch/riscv/include/asm/module.h b/arch/riscv/include/asm/module.h
> index 76aa96a9fc08..78722a79fc59 100644
> --- a/arch/riscv/include/asm/module.h
> +++ b/arch/riscv/include/asm/module.h
> @@ -111,4 +111,19 @@ static inline struct plt_entry *get_plt_entry(unsigned long val,
>
> #endif /* CONFIG_MODULE_SECTIONS */
Should probably add an explicit #include <linux/elf.h>
Otherwise
Reviewed-by: Andrew Jones <[email protected]>
Thanks,
drew
>
> +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_RISCV_MODULE_H */
> diff --git a/arch/riscv/kernel/module.c b/arch/riscv/kernel/module.c
> index 91fe16bfaa07..76f4b9c2ec5b 100644
> --- a/arch/riscv/kernel/module.c
> +++ b/arch/riscv/kernel/module.c
> @@ -429,21 +429,6 @@ void *module_alloc(unsigned long size)
> }
> #endif
>
> -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;
> -}
> -
> int module_finalize(const Elf_Ehdr *hdr,
> const Elf_Shdr *sechdrs,
> struct module *me)
> --
> 2.37.2
>
On Mon, Dec 05, 2022 at 01:46:27AM +0800, Jisheng Zhang wrote:
> Move it to the header so that the implementation can be shared
> by the alternatives code.
I'm not a super big fan of these perfunctory commit messages.
Maybe I'm being a bit ornery, but a few words about why the alternatives
could benefit from this would be nice. Also, s/it/find_section()/ please.
How about:
> Move find_section() to module.h so that the implementation can be shared
> by the alternatives code. This will allow us to use alternatives in
> the vdso.
> Signed-off-by: Jisheng Zhang <[email protected]>
> ---
> arch/riscv/include/asm/module.h | 15 +++++++++++++++
> arch/riscv/kernel/module.c | 15 ---------------
Silly question maybe, but is module.h the right place to put this?
But I have nothing better to suggest, and I hate bikeshedding stuff when
I have no suggestion to make.
Rationale behind the movement seems grand to me though, so I suppose:
Reviewed-by: Conor Dooley <[email protected]>
Thanks,
Conor.
> 2 files changed, 15 insertions(+), 15 deletions(-)
>
> diff --git a/arch/riscv/include/asm/module.h b/arch/riscv/include/asm/module.h
> index 76aa96a9fc08..78722a79fc59 100644
> --- a/arch/riscv/include/asm/module.h
> +++ b/arch/riscv/include/asm/module.h
> @@ -111,4 +111,19 @@ static inline struct plt_entry *get_plt_entry(unsigned long val,
>
> #endif /* CONFIG_MODULE_SECTIONS */
>
> +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_RISCV_MODULE_H */
> diff --git a/arch/riscv/kernel/module.c b/arch/riscv/kernel/module.c
> index 91fe16bfaa07..76f4b9c2ec5b 100644
> --- a/arch/riscv/kernel/module.c
> +++ b/arch/riscv/kernel/module.c
> @@ -429,21 +429,6 @@ void *module_alloc(unsigned long size)
> }
> #endif
>
> -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;
> -}
> -
> int module_finalize(const Elf_Ehdr *hdr,
> const Elf_Shdr *sechdrs,
> struct module *me)
> --
> 2.37.2
>