Re: [NFS] [PATCH] NFSD: fix uninitialized variable

From: Jeff Garzik
Date: Mon May 28 2007 - 23:19:39 EST


J. Bruce Fields wrote:
On Sun, May 27, 2007 at 06:34:42AM -0400, Jeff Garzik wrote:
Unlike many of the bogus warnings spewed by gcc, this one actually
complains about a real bug:

No, the calls to posix_acl_valid() in nfs4_acl_posix_to_nfsv4() ensure
that the passed-in acl has ACL_USER_OBJ, ACL_GROUP_OBJ, and ACL_OTHER
entries, and hence that these fields will always be initialized.

OK


But I don't want anyone else wasting their time on this. Should we cave
in and add the initialization here just to shut up gcc? Or would a
comment here help?

Given what you said above, I don't see gcc, on its best day, will ever know enough to validate that that variable is indeed always initialized. So I would vote for silencing it on those grounds.

Jeff


-
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/