[PATCH] arm64: extable: remove unsed ex_handler_t definition

[PATCH] arm64: extable: remove unsed ex_handler_t definition

[Jisheng Zhang]

From: Jisheng Zhang <jszhang@kernel.org>

The type ex_handler_t is defined but not used, remove it.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
---
 arch/arm64/mm/extable.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/arm64/mm/extable.c b/arch/arm64/mm/extable.c
index c3d53811a15e..c0181e60cc98 100644
--- a/arch/arm64/mm/extable.c
+++ b/arch/arm64/mm/extable.c
@@ -10,9 +10,6 @@
 #include <asm/asm-extable.h>
 #include <asm/ptrace.h>
 
-typedef bool (*ex_handler_t)(const struct exception_table_entry *,
-			     struct pt_regs *);
-
 static inline unsigned long
 get_ex_fixup(const struct exception_table_entry *ex)
 {
-- 
2.33.0

Re: [PATCH] arm64: extable: remove unsed ex_handler_t definition

[Mark Rutland]

On Thu, Nov 18, 2021 at 08:02:49PM +0800, Jisheng Zhang wrote:
> From: Jisheng Zhang <jszhang@kernel.org>
> 
> The type ex_handler_t is defined but not used, remove it.

It's probably worth saying:

| The ex_handler_t type was introduced in commit:
|
|   d6e2cc5647753825 ("arm64: extable: add `type` and `data` fields")
| 
| ... but has never been used, and is unnecessary. Remove it.

... as this was a leftover from a prior version of that patch, and in
the form merged in mainline it was redundant becuase we moved to using
an enumerated type rather than a function pointer in the ex_table_entry.

> Signed-off-by: Jisheng Zhang <jszhang@kernel.org>

With or without the wording above:

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

Thanks,
Mark.

> ---
>  arch/arm64/mm/extable.c | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/arch/arm64/mm/extable.c b/arch/arm64/mm/extable.c
> index c3d53811a15e..c0181e60cc98 100644
> --- a/arch/arm64/mm/extable.c
> +++ b/arch/arm64/mm/extable.c
> @@ -10,9 +10,6 @@
>  #include <asm/asm-extable.h>
>  #include <asm/ptrace.h>
>  
> -typedef bool (*ex_handler_t)(const struct exception_table_entry *,
> -			     struct pt_regs *);
> -
>  static inline unsigned long
>  get_ex_fixup(const struct exception_table_entry *ex)
>  {
> -- 
> 2.33.0
> 
>