From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754794Ab2KSUEq (ORCPT ); Mon, 19 Nov 2012 15:04:46 -0500 Received: from mail-ee0-f46.google.com ([74.125.83.46]:48924 "EHLO mail-ee0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754113Ab2KSUEp convert rfc822-to-8bit (ORCPT ); Mon, 19 Nov 2012 15:04:45 -0500 MIME-Version: 1.0 In-Reply-To: <1353302917-13995-53-git-send-email-josh@joshtriplett.org> References: <1353302917-13995-1-git-send-email-josh@joshtriplett.org> <1353302917-13995-53-git-send-email-josh@joshtriplett.org> From: Andy Lutomirski Date: Mon, 19 Nov 2012 12:04:23 -0800 Message-ID: Subject: Re: [PATCH 52/58] x86: vdso: Add prototypes for __vdso_* functions To: Josh Triplett Cc: Linus Torvalds , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , x86@kernel.org, John Stultz , linux-kernel@vger.kernel.org Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Nov 18, 2012 at 9:28 PM, Josh Triplett wrote: > arch/x86/vdso/vclock_gettime.c and arch/x86/vdso/vgetcpu.c define > several functions prefixed by __vdso_*, used in the alias definitions > for the actual vdso symbols calls. Add prototypes of these functions > right before their definitions, to satisfy gcc (-Wmissing-prototypes) > and Sparse (-Wdecl). > > arch/x86/vdso/vclock_gettime.c:161:45: warning: no previous prototype for ‘__vdso_clock_gettime’ [-Wmissing-prototypes] > arch/x86/vdso/vclock_gettime.c:185:45: warning: no previous prototype for ‘__vdso_gettimeofday’ [-Wmissing-prototypes] > arch/x86/vdso/vclock_gettime.c:213:48: warning: no previous prototype for ‘__vdso_time’ [-Wmissing-prototypes] > arch/x86/vdso/vgetcpu.c:16:1: warning: no previous prototype for ‘__vdso_getcpu’ [-Wmissing-prototypes] > > Signed-off-by: Josh Triplett > --- > arch/x86/vdso/vclock_gettime.c | 3 +++ > arch/x86/vdso/vgetcpu.c | 2 ++ > 2 files changed, 5 insertions(+) > > diff --git a/arch/x86/vdso/vclock_gettime.c b/arch/x86/vdso/vclock_gettime.c > index 4df6c37..bc8b276 100644 > --- a/arch/x86/vdso/vclock_gettime.c > +++ b/arch/x86/vdso/vclock_gettime.c > @@ -158,6 +158,7 @@ notrace static int do_monotonic_coarse(struct timespec *ts) > return 0; > } > > +int __vdso_clock_gettime(clockid_t clock, struct timespec *ts); > notrace int __vdso_clock_gettime(clockid_t clock, struct timespec *ts) > { > int ret = VCLOCK_NONE; > @@ -182,6 +183,7 @@ notrace int __vdso_clock_gettime(clockid_t clock, struct timespec *ts) > int clock_gettime(clockid_t, struct timespec *) > __attribute__((weak, alias("__vdso_clock_gettime"))); > > +int __vdso_gettimeofday(struct timeval *tv, struct timezone *tz); > notrace int __vdso_gettimeofday(struct timeval *tv, struct timezone *tz) > { > long ret = VCLOCK_NONE; > @@ -210,6 +212,7 @@ int gettimeofday(struct timeval *, struct timezone *) > * This will break when the xtime seconds get inaccurate, but that is > * unlikely > */ > +time_t __vdso_time(time_t *t); > notrace time_t __vdso_time(time_t *t) > { > /* This is atomic on x86_64 so we don't need any locks. */ > diff --git a/arch/x86/vdso/vgetcpu.c b/arch/x86/vdso/vgetcpu.c > index 5463ad5..b55350f 100644 > --- a/arch/x86/vdso/vgetcpu.c > +++ b/arch/x86/vdso/vgetcpu.c > @@ -12,6 +12,8 @@ > #include > #include > > +long __vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused); > + > notrace long > __vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused) > { > -- > 1.7.10.4 > Acked-by: Andy Lutomirski In theory, this could go in arch/x86/include/uapi/asm/vdso.h. No one cares, I suspect, since there exactly two non-test-case users that I know of. --Andy -- Andy Lutomirski AMA Capital Management, LLC