Re: [PATCH 18/18] flag parameters: check magic constants

[Ulrich Drepper <drepper@xxxxxxxxxx>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Andrew Morton wrote:
>> +	BUILD_BUG_ON(SOCK_NONBLOCK & SOCK_TYPE_MASK);
> 
> The fifth assertion triggers with alpha allmodconfig.

This means the simple approach won't work for alpha.

The question is how to solve it?  I suggest the following:

- - define SOCK_NONBLOCK to some value > 16 in include/asm-alpha/socket.h

- - add #ifndef SOCK_NONBLOCK around the definition in include/linux/net.h

- - in sys_socket, sys_socketpair, sys_paccept

   int fflags = flags;
   if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK)) {
     fflags &= ~SOCK_NONBLOCK;
     fflags |= O_NONBLOCK;
   }

  and use fflags instead of flags in the places where we pass it on.

This has no costs on platforms other than alpha.

Shall I sent a patch?

- --
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (GNU/Linux)
Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org

iEYEARECAAYFAkgpEPoACgkQ2ijCOnn/RHQ38gCgyVOI/urGeoIr7CFIfs8C7OyR
I80AniPGGWyxZYUQg0pQlySQHqX/UYlx
=5fA2
-----END PGP SIGNATURE-----
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/