diff mbox series

[v2,2/2] Use __nonnull for the epoll_wait(2) family of syscalls

Message ID 20230531204422.18052-2-alx@kernel.org
State New
Headers show
Series Use __nonnull for the epoll_wait(2) family of syscalls | expand

Commit Message

Alejandro Colomar May 31, 2023, 8:44 p.m. UTC
Cc: Adhemerval Zanella Netto <adhemerval.zanella@linaro.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
---
 include/sys/epoll.h                 | 3 ++-
 sysdeps/unix/sysv/linux/sys/epoll.h | 8 ++++----
 2 files changed, 6 insertions(+), 5 deletions(-)

Comments

Adhemerval Zanella Netto June 1, 2023, 6 p.m. UTC | #1
On 31/05/23 17:44, Alejandro Colomar wrote:
> Cc: Adhemerval Zanella Netto <adhemerval.zanella@linaro.org>
> Signed-off-by: Alejandro Colomar <alx@kernel.org>


LGTM, although the buildbot failed to apply the patch for some reason [1].
It does apply if I use git-pw.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

[1] https://patchwork.sourceware.org/project/glibc/patch/20230531204422.18052-2-alx@kernel.org/

> ---
>  include/sys/epoll.h                 | 3 ++-
>  sysdeps/unix/sysv/linux/sys/epoll.h | 8 ++++----
>  2 files changed, 6 insertions(+), 5 deletions(-)
> 
> diff --git a/include/sys/epoll.h b/include/sys/epoll.h
> index 8049381a26..b23bc9c7c0 100644
> --- a/include/sys/epoll.h
> +++ b/include/sys/epoll.h
> @@ -9,7 +9,8 @@ libc_hidden_proto (epoll_pwait)
>  #else
>  extern int __epoll_pwait2_time64 (int fd, struct epoll_event *ev, int maxev,
>  				  const struct __timespec64 *tmo,
> -				  const sigset_t *s);
> +				  const sigset_t *s)
> +       __nonnull ((2));
>  libc_hidden_proto (__epoll_pwait2_time64)
>  #endif
>  
> diff --git a/sysdeps/unix/sysv/linux/sys/epoll.h b/sysdeps/unix/sysv/linux/sys/epoll.h
> index b17d344e79..23872c9438 100644
> --- a/sysdeps/unix/sysv/linux/sys/epoll.h
> +++ b/sysdeps/unix/sysv/linux/sys/epoll.h
> @@ -123,7 +123,7 @@ extern int epoll_ctl (int __epfd, int __op, int __fd,
>     __THROW.  */
>  extern int epoll_wait (int __epfd, struct epoll_event *__events,
>  		       int __maxevents, int __timeout)
> -	__attr_access ((__write_only__, 2, 3));
> +	__attr_access ((__write_only__, 2, 3)) __nonnull ((2));
>  
>  
>  /* Same as epoll_wait, but the thread's signal mask is temporarily
> @@ -134,7 +134,7 @@ extern int epoll_wait (int __epfd, struct epoll_event *__events,
>  extern int epoll_pwait (int __epfd, struct epoll_event *__events,
>  			int __maxevents, int __timeout,
>  			const __sigset_t *__ss)
> -	__attr_access ((__write_only__, 2, 3));
> +	__attr_access ((__write_only__, 2, 3)) __nonnull ((2));
>  
>  /* Same as epoll_pwait, but the timeout as a timespec.
>  
> @@ -144,7 +144,7 @@ extern int epoll_pwait (int __epfd, struct epoll_event *__events,
>  extern int epoll_pwait2 (int __epfd, struct epoll_event *__events,
>  			 int __maxevents, const struct timespec *__timeout,
>  			 const __sigset_t *__ss)
> -	__attr_access ((__write_only__, 2, 3));
> +	__attr_access ((__write_only__, 2, 3)) __nonnull ((2));
>  #else
>  # ifdef __REDIRECT
>  extern int __REDIRECT (epoll_pwait2, (int __epfd, struct epoll_event *__ev,
> @@ -152,7 +152,7 @@ extern int __REDIRECT (epoll_pwait2, (int __epfd, struct epoll_event *__ev,
>  				      const struct timespec *__timeout,
>  				      const __sigset_t *__ss),
>  		       __epoll_pwait2_time64)
> -	__attr_access ((__write_only__, 2, 3));
> +	__attr_access ((__write_only__, 2, 3)) __nonnull ((2));
>  # else
>  #  define epoll_pwait2 __epoll_pwait2_time64
>  # endif
Alejandro Colomar June 1, 2023, 11:46 p.m. UTC | #2
On 6/1/23 20:00, Adhemerval Zanella Netto wrote:
> 
> 
> On 31/05/23 17:44, Alejandro Colomar wrote:
>> Cc: Adhemerval Zanella Netto <adhemerval.zanella@linaro.org>
>> Signed-off-by: Alejandro Colomar <alx@kernel.org>
> 
> 
> LGTM, although the buildbot failed to apply the patch for some reason [1].

Don't know; maybe I forgot to rebase to the latest master, and some context
changed, and it applied with fuzz... git can apply it, but the buildbot is
probably more cautious.

> It does apply if I use git-pw.
> 
> Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

Thank you!

(you forgot to actually put this tag in 1/2 :)

Cheers,
Alex

> 
> [1] https://patchwork.sourceware.org/project/glibc/patch/20230531204422.18052-2-alx@kernel.org/
>
diff mbox series

Patch

diff --git a/include/sys/epoll.h b/include/sys/epoll.h
index 8049381a26..b23bc9c7c0 100644
--- a/include/sys/epoll.h
+++ b/include/sys/epoll.h
@@ -9,7 +9,8 @@  libc_hidden_proto (epoll_pwait)
 #else
 extern int __epoll_pwait2_time64 (int fd, struct epoll_event *ev, int maxev,
 				  const struct __timespec64 *tmo,
-				  const sigset_t *s);
+				  const sigset_t *s)
+       __nonnull ((2));
 libc_hidden_proto (__epoll_pwait2_time64)
 #endif
 
diff --git a/sysdeps/unix/sysv/linux/sys/epoll.h b/sysdeps/unix/sysv/linux/sys/epoll.h
index b17d344e79..23872c9438 100644
--- a/sysdeps/unix/sysv/linux/sys/epoll.h
+++ b/sysdeps/unix/sysv/linux/sys/epoll.h
@@ -123,7 +123,7 @@  extern int epoll_ctl (int __epfd, int __op, int __fd,
    __THROW.  */
 extern int epoll_wait (int __epfd, struct epoll_event *__events,
 		       int __maxevents, int __timeout)
-	__attr_access ((__write_only__, 2, 3));
+	__attr_access ((__write_only__, 2, 3)) __nonnull ((2));
 
 
 /* Same as epoll_wait, but the thread's signal mask is temporarily
@@ -134,7 +134,7 @@  extern int epoll_wait (int __epfd, struct epoll_event *__events,
 extern int epoll_pwait (int __epfd, struct epoll_event *__events,
 			int __maxevents, int __timeout,
 			const __sigset_t *__ss)
-	__attr_access ((__write_only__, 2, 3));
+	__attr_access ((__write_only__, 2, 3)) __nonnull ((2));
 
 /* Same as epoll_pwait, but the timeout as a timespec.
 
@@ -144,7 +144,7 @@  extern int epoll_pwait (int __epfd, struct epoll_event *__events,
 extern int epoll_pwait2 (int __epfd, struct epoll_event *__events,
 			 int __maxevents, const struct timespec *__timeout,
 			 const __sigset_t *__ss)
-	__attr_access ((__write_only__, 2, 3));
+	__attr_access ((__write_only__, 2, 3)) __nonnull ((2));
 #else
 # ifdef __REDIRECT
 extern int __REDIRECT (epoll_pwait2, (int __epfd, struct epoll_event *__ev,
@@ -152,7 +152,7 @@  extern int __REDIRECT (epoll_pwait2, (int __epfd, struct epoll_event *__ev,
 				      const struct timespec *__timeout,
 				      const __sigset_t *__ss),
 		       __epoll_pwait2_time64)
-	__attr_access ((__write_only__, 2, 3));
+	__attr_access ((__write_only__, 2, 3)) __nonnull ((2));
 # else
 #  define epoll_pwait2 __epoll_pwait2_time64
 # endif