From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751624AbYKXISB (ORCPT ); Mon, 24 Nov 2008 03:18:01 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752092AbYKXIRt (ORCPT ); Mon, 24 Nov 2008 03:17:49 -0500 Received: from nf-out-0910.google.com ([64.233.182.190]:59695 "EHLO nf-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752386AbYKXIRs (ORCPT ); Mon, 24 Nov 2008 03:17:48 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer:mime-version :content-type:content-transfer-encoding; b=RVFvNwpGZkCp8tl7pP2rEZ3kV9vhi4YQMgNYYw6wFOS2G9m/NwZRSnYaUXE6C0CH6U xZSY9eqcm+eOdtAiFvGWxK4I53hLbllmOMbFAIiu/oaoSNwc2GNcROmjoriuOqhHHTOd HazJXGS4Vv0y0bC1pw5XFVwEkuF+lQPBvCOEE= From: =?utf-8?q?T=C3=B6r=C3=B6k=20Edwin?= To: Ingo Molnar Cc: Arjan van de Ven , Thomas Gleixner , Steven Rostedt , David Howells , linux-kernel@vger.kernel.org, =?utf-8?q?T=C3=B6r=C3=B6k=20Edwin?= Subject: [PATCH] __used is needed for function referenced only from inline asm Date: Mon, 24 Nov 2008 10:17:42 +0200 Message-Id: <1227514662-10848-1-git-send-email-edwintorok@gmail.com> X-Mailer: git-send-email 1.5.6.5 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org According to the gcc manual, the 'used' attribute should be applied to functions referenced only from inline assembly. This fixes a build failure with llvm-gcc-4.2, which deleted __mutex_lock_slowpath, __mutex_unlock_slowpath. Signed-off-by: Török Edwin --- kernel/mutex.c | 8 ++++---- 1 files changed, 4 insertions(+), 4 deletions(-) diff --git a/kernel/mutex.c b/kernel/mutex.c index 39a3816..4f45d4b 100644 --- a/kernel/mutex.c +++ b/kernel/mutex.c @@ -59,7 +59,7 @@ EXPORT_SYMBOL(__mutex_init); * We also put the fastpath first in the kernel image, to make sure the * branch is predicted by the CPU as default-untaken. */ -static void noinline __sched +static __used noinline void __sched __mutex_lock_slowpath(atomic_t *lock_count); /*** @@ -96,7 +96,7 @@ void inline __sched mutex_lock(struct mutex *lock) EXPORT_SYMBOL(mutex_lock); #endif -static noinline void __sched __mutex_unlock_slowpath(atomic_t *lock_count); +static __used noinline void __sched __mutex_unlock_slowpath(atomic_t *lock_count); /*** * mutex_unlock - release the mutex @@ -268,7 +268,7 @@ __mutex_unlock_common_slowpath(atomic_t *lock_count, int nested) /* * Release the lock, slowpath: */ -static noinline void +static __used noinline void __mutex_unlock_slowpath(atomic_t *lock_count) { __mutex_unlock_common_slowpath(lock_count, 1); @@ -313,7 +313,7 @@ int __sched mutex_lock_killable(struct mutex *lock) } EXPORT_SYMBOL(mutex_lock_killable); -static noinline void __sched +static __used noinline void __sched __mutex_lock_slowpath(atomic_t *lock_count) { struct mutex *lock = container_of(lock_count, struct mutex, count); -- 1.5.6.5