Deepa Dinamani <deepa.ker...@gmail.com> writes:

> SO_RCVTIMEO and SO_SNDTIMEO socket options use struct timeval
> as the time format. struct timeval is not y2038 safe.
> The subsequent patches in the series add support for new socket
> timeout options with _NEW suffix that will use y2038 safe
> data structures. Although the existing struct timeval layout
> is sufficiently wide to represent timeouts, because of the way
> libc will interpret time_t based on user defined flag, these
> new flags provide a way of having a structure that is the same
> for all architectures consistently.
> Rename the existing options with _OLD suffix forms so that the
> right option is enabled for userspace applications according
> to the architecture and time_t definition of libc.
>
> Signed-off-by: Deepa Dinamani <deepa.ker...@gmail.com>
> Acked-by: Willem de Bruijn <will...@google.com>
> Cc: ccaul...@redhat.com
> Cc: del...@gmx.de
> Cc: pau...@samba.org
> Cc: r...@linux-mips.org
> Cc: r...@twiddle.net
> Cc: cluster-devel@redhat.com
> Cc: linuxppc-...@lists.ozlabs.org
> Cc: linux-al...@vger.kernel.org
> Cc: linux-a...@vger.kernel.org
> Cc: linux-m...@vger.kernel.org
> Cc: linux-par...@vger.kernel.org
> Cc: sparcli...@vger.kernel.org
> ---
>  arch/alpha/include/uapi/asm/socket.h   | 7 +++++--
>  arch/mips/include/uapi/asm/socket.h    | 6 ++++--
>  arch/parisc/include/uapi/asm/socket.h  | 6 ++++--
>  arch/powerpc/include/uapi/asm/socket.h | 4 ++--

The powerpc changes look OK to me.

Acked-by: Michael Ellerman <m...@ellerman.id.au> (powerpc)

cheers

> diff --git a/arch/powerpc/include/uapi/asm/socket.h 
> b/arch/powerpc/include/uapi/asm/socket.h
> index 94de465e0920..12aa0c43e775 100644
> --- a/arch/powerpc/include/uapi/asm/socket.h
> +++ b/arch/powerpc/include/uapi/asm/socket.h
> @@ -11,8 +11,8 @@
>  
>  #define SO_RCVLOWAT  16
>  #define SO_SNDLOWAT  17
> -#define SO_RCVTIMEO  18
> -#define SO_SNDTIMEO  19
> +#define SO_RCVTIMEO_OLD      18
> +#define SO_SNDTIMEO_OLD      19
>  #define SO_PASSCRED  20
>  #define SO_PEERCRED  21
>  
> diff --git a/include/uapi/asm-generic/socket.h 
> b/include/uapi/asm-generic/socket.h
> index 2713e0fa68ef..c56b8b487c12 100644
> --- a/include/uapi/asm-generic/socket.h
> +++ b/include/uapi/asm-generic/socket.h
> @@ -30,8 +30,8 @@
>  #define SO_PEERCRED  17
>  #define SO_RCVLOWAT  18
>  #define SO_SNDLOWAT  19
> -#define SO_RCVTIMEO  20
> -#define SO_SNDTIMEO  21
> +#define SO_RCVTIMEO_OLD      20
> +#define SO_SNDTIMEO_OLD      21
>  #endif
>  
>  /* Security levels - as per NRL IPv6 - don't actually do anything */
> @@ -116,6 +116,8 @@
>  
>  #if !defined(__KERNEL__)
>  
> +#define      SO_RCVTIMEO SO_RCVTIMEO_OLD
> +#define      SO_SNDTIMEO SO_SNDTIMEO_OLD
>  #if __BITS_PER_LONG == 64 || (defined(__x86_64__) && defined(__ILP32__))
>  /* on 64-bit and x32, avoid the ?: operator */
>  #define SO_TIMESTAMP         SO_TIMESTAMP_OLD

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