Messages in this thread | | | From | Richard Weinberger <> | Subject | Re: [PATCH 1/4] uml: cow_user.c warning corrections | Date | Tue, 5 Jul 2011 13:40:04 +0200 |
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Am Dienstag 05 Juli 2011, 13:38:05 schrieb Geert Uytterhoeven: > On Tue, Jul 5, 2011 at 13:31, Richard Weinberger <richard@nod.at> wrote: > > Am Dienstag 05 Juli 2011, 13:10:34 schrieb Vitaliy Ivanov: > >> On Tue, Jul 5, 2011 at 12:28 PM, Richard Weinberger <richard@nod.at> wrote: > >> > Am Dienstag 05 Juli 2011, 01:15:41 schrieb Vitaliy Ivanov: > >> >> From 6201d3e862fca8670b206338dc90303ea0acc77d Mon Sep 17 00:00:00 > >> >> 2001 From: Vitaliy Ivanov <vitalivanov@gmail.com> > >> >> Date: Tue, 5 Jul 2011 01:57:51 +0300 > >> >> Subject: [PATCH 1/4] uml: cow_user.c warning corrections > >> >> MIME-Version: 1.0 > >> >> Content-Type: text/plain; charset=UTF-8 > >> >> Content-Transfer-Encoding: 8bit > >> >> > >> >> arch/um/drivers/cow_user.c: In function ‘absolutize’: > >> >> arch/um/drivers/cow_user.c:189:7: warning: ignoring return value of > >> >> ‘chdir’, declared with attribute warn_unused_result > >> > > >> > What compiler flags are you using? > >> > Using the default settings this warning does not show up. > >> > Most of the "ignoring return value" are totally useless. > >> > >> chdir is defined with warn_unused_result attribute and my gcc on > >> Ubuntu 11.04 issues warnings. > >> I don't use any additional flags on compiling UML. > > > > Ah, because of -D_FORTIFY_SOURCE=2, right? > > Then your patches makes sense. > > I also saw it, with gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5). > I never used FORTIFY_SOURCE. >
Ubuntu uses FORTIFY_SOURCE per default.
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