From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Rothwell Subject: linux-next: build warning after merge of the tip tree Date: Mon, 29 Nov 2010 12:11:31 +1100 Message-ID: <20101129121131.f3e7798b.sfr@canb.auug.org.au> Mime-Version: 1.0 Content-Type: multipart/signed; protocol="application/pgp-signature"; micalg="PGP-SHA1"; boundary="Signature=_Mon__29_Nov_2010_12_11_31_+1100_EHsax_wZVIbqy_ax" Return-path: Received: from chilli.pcug.org.au ([203.10.76.44]:59479 "EHLO smtps.tip.net.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751889Ab0K2BLl (ORCPT ); Sun, 28 Nov 2010 20:11:41 -0500 Sender: linux-next-owner@vger.kernel.org List-ID: To: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Peter Zijlstra Cc: linux-next@vger.kernel.org, linux-kernel@vger.kernel.org --Signature=_Mon__29_Nov_2010_12_11_31_+1100_EHsax_wZVIbqy_ax Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi all, After merging the tip tree, today's linux-next build (x86_64 allmodconfig) produced this warning: kernel/sched.c: In function 'sched_destroy_group': kernel/sched.c:8098: warning: 'i' is used uninitialized in this function kernel/sched.c:8088: note: 'i' was declared here Introduced by commit 3d4b47b4b040c9d77dd68104cfc1055d89a55afd ("sched: Implement on-demand (active) cfs_rq list"). I think this is a real bug. [The wrong function is mentioned above, the actual function is unregister_fair_sched_group() - presumably gcc has confused itself via inlining.] --=20 Cheers, Stephen Rothwell sfr@canb.auug.org.au http://www.canb.auug.org.au/~sfr/ --Signature=_Mon__29_Nov_2010_12_11_31_+1100_EHsax_wZVIbqy_ax Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iQEcBAEBAgAGBQJM8v3DAAoJEDMEi1NhKgbsG+wIAItMmmSf15f71tBlJHK2H/Ur V2TxmeFeY/2WLUIPmef9WKRMMvc5d7q8xI0i30wUoC+mURZMS3OB7U/1MlNYXyfh d402CYbLPnLZgg27Ou05CrF8tcWVd1mx9XFNJ49A7U3X3gLMhtFQ6zUvi9LD9CTN ms2kxIlXdRxGZHG9VkaObW+xintD4HHyrZq0B8Zsu326ckA+6NhKk6PzMuoGrjE2 WPwuicctT1tQvcB+ownRKbiBU8qMstCI5fGURi9cX1FQGvWWJYR7xPYbGG2bY7Vq CUgs9ZgczIBm8t3sNaLRZ/B+Clntl5MMolxBshy75sjySPrXap1QRnBAtFZsnr4= =xr5H -----END PGP SIGNATURE----- --Signature=_Mon__29_Nov_2010_12_11_31_+1100_EHsax_wZVIbqy_ax--