diff mbox series

binfmt: remove taso from linux_binprm struct

Message ID 20220929203903.9475-1-lukas.bulwahn@gmail.com (mailing list archive)
State New
Headers show
Series binfmt: remove taso from linux_binprm struct | expand

Commit Message

Lukas Bulwahn Sept. 29, 2022, 8:39 p.m. UTC
With commit 987f20a9dcce ("a.out: Remove the a.out implementation"), the
use of the special taso flag for alpha architectures in the linux_binprm
struct is gone.

Remove the definition of taso in the linux_binprm struct.

No functional change.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
---
Kees, please pick this patch on top of the commit above.

 include/linux/binfmts.h | 3 ---
 1 file changed, 3 deletions(-)

Comments

Eric W. Biederman Sept. 29, 2022, 10:17 p.m. UTC | #1
Lukas Bulwahn <lukas.bulwahn@gmail.com> writes:

> With commit 987f20a9dcce ("a.out: Remove the a.out implementation"), the
> use of the special taso flag for alpha architectures in the linux_binprm
> struct is gone.
>
> Remove the definition of taso in the linux_binprm struct.
>
> No functional change.

Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>

Alphas binfmt_loader is the only use I can find of that variable
so let's kill it as well.

> Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
> ---
> Kees, please pick this patch on top of the commit above.
>
>  include/linux/binfmts.h | 3 ---
>  1 file changed, 3 deletions(-)
>
> diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
> index 3dc20c4f394c..8d51f69f9f5e 100644
> --- a/include/linux/binfmts.h
> +++ b/include/linux/binfmts.h
> @@ -43,9 +43,6 @@ struct linux_binprm {
>  		 * original userspace.
>  		 */
>  		point_of_no_return:1;
> -#ifdef __alpha__
> -	unsigned int taso:1;
> -#endif
>  	struct file *executable; /* Executable to pass to the interpreter */
>  	struct file *interpreter;
>  	struct file *file;
Kees Cook Sept. 29, 2022, 11:36 p.m. UTC | #2
On Thu, Sep 29, 2022 at 05:17:28PM -0500, Eric W. Biederman wrote:
> Lukas Bulwahn <lukas.bulwahn@gmail.com> writes:
> 
> > With commit 987f20a9dcce ("a.out: Remove the a.out implementation"), the
> > use of the special taso flag for alpha architectures in the linux_binprm
> > struct is gone.
> >
> > Remove the definition of taso in the linux_binprm struct.
> >
> > No functional change.
> 
> Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
> 
> Alphas binfmt_loader is the only use I can find of that variable
> so let's kill it as well.

I can't find anything using "taso". Where are you looking?
Kees Cook Sept. 29, 2022, 11:39 p.m. UTC | #3
On Thu, Sep 29, 2022 at 05:17:28PM -0500, Eric W. Biederman wrote:
> Lukas Bulwahn <lukas.bulwahn@gmail.com> writes:
> 
> > With commit 987f20a9dcce ("a.out: Remove the a.out implementation"), the
> > use of the special taso flag for alpha architectures in the linux_binprm
> > struct is gone.
> >
> > Remove the definition of taso in the linux_binprm struct.
> >
> > No functional change.
> 
> Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
> 
> Alphas binfmt_loader is the only use I can find of that variable
> so let's kill it as well.

Ah, sorry, misparsed this -- you mean, alpha's use (now removed) was the
only place it was accessed. Agreed. :)
Kees Cook Sept. 29, 2022, 11:42 p.m. UTC | #4
On Thu, 29 Sep 2022 22:39:03 +0200, Lukas Bulwahn wrote:
> With commit 987f20a9dcce ("a.out: Remove the a.out implementation"), the
> use of the special taso flag for alpha architectures in the linux_binprm
> struct is gone.
> 
> Remove the definition of taso in the linux_binprm struct.
> 
> No functional change.
> 
> [...]

Applied to for-next/execve, thanks!

[1/1] binfmt: remove taso from linux_binprm struct
      https://git.kernel.org/kees/c/9f4beead610c
Eric W. Biederman Sept. 30, 2022, 4:35 p.m. UTC | #5
Kees Cook <keescook@chromium.org> writes:

> On Thu, Sep 29, 2022 at 05:17:28PM -0500, Eric W. Biederman wrote:
>> Lukas Bulwahn <lukas.bulwahn@gmail.com> writes:
>> 
>> > With commit 987f20a9dcce ("a.out: Remove the a.out implementation"), the
>> > use of the special taso flag for alpha architectures in the linux_binprm
>> > struct is gone.
>> >
>> > Remove the definition of taso in the linux_binprm struct.
>> >
>> > No functional change.
>> 
>> Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
>> 
>> Alphas binfmt_loader is the only use I can find of that variable
>> so let's kill it as well.
>
> Ah, sorry, misparsed this -- you mean, alpha's use (now removed) was the
> only place it was accessed. Agreed. :)

Yes.  I was looking in a tree without my previous change merged.

The code in binfmt_loader (which is removed in the my change) was the
only user of that variable I could find.

Eric
diff mbox series

Patch

diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
index 3dc20c4f394c..8d51f69f9f5e 100644
--- a/include/linux/binfmts.h
+++ b/include/linux/binfmts.h
@@ -43,9 +43,6 @@  struct linux_binprm {
 		 * original userspace.
 		 */
 		point_of_no_return:1;
-#ifdef __alpha__
-	unsigned int taso:1;
-#endif
 	struct file *executable; /* Executable to pass to the interpreter */
 	struct file *interpreter;
 	struct file *file;