Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754060Ab2HSC6m (ORCPT ); Sat, 18 Aug 2012 22:58:42 -0400 Received: from mga09.intel.com ([134.134.136.24]:30195 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752942Ab2HSC51 (ORCPT ); Sat, 18 Aug 2012 22:57:27 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.77,792,1336374000"; d="scan'208";a="182422069" From: Andi Kleen To: linux-kernel@vger.kernel.org Cc: x86@kernel.org, mmarek@suse.cz, linux-kbuild@vger.kernel.org, JBeulich@suse.com, akpm@linux-foundation.org, Andi Kleen Subject: [PATCH 44/74] lto: Mark functions used by the vsyscall init code visible Date: Sat, 18 Aug 2012 19:56:40 -0700 Message-Id: <1345345030-22211-45-git-send-email-andi@firstfloor.org> X-Mailer: git-send-email 1.7.7.6 In-Reply-To: <1345345030-22211-1-git-send-email-andi@firstfloor.org> References: <1345345030-22211-1-git-send-email-andi@firstfloor.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2060 Lines: 59 From: Andi Kleen The vsyscall code is compiled without LTO. This also includes its init function. The function which are called by it have to be visible, otherwise they could be optimized away Signed-off-by: Andi Kleen --- drivers/char/random.c | 2 +- include/linux/mm.h | 1 + mm/vmalloc.c | 2 +- 3 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/char/random.c b/drivers/char/random.c index b86eae9..33c8fe5 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -1450,7 +1450,7 @@ late_initcall(random_int_secret_init); * depleting entropy is too high */ static DEFINE_PER_CPU(__u32 [MD5_DIGEST_WORDS], get_random_int_hash); -unsigned int get_random_int(void) +__visible unsigned int get_random_int(void) { __u32 *hash; unsigned int ret; diff --git a/include/linux/mm.h b/include/linux/mm.h index 311be90..d3ca155 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1413,6 +1413,7 @@ extern void set_mm_exe_file(struct mm_struct *mm, struct file *new_exe_file); extern struct file *get_mm_exe_file(struct mm_struct *mm); extern int may_expand_vm(struct mm_struct *mm, unsigned long npages); +__visible extern int install_special_mapping(struct mm_struct *mm, unsigned long addr, unsigned long len, unsigned long flags, struct page **pages); diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 2bb90b1..286ea0c 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -1558,7 +1558,7 @@ EXPORT_SYMBOL(vunmap); * Maps @count pages from @pages into contiguous kernel virtual * space. */ -void *vmap(struct page **pages, unsigned int count, +__visible void *vmap(struct page **pages, unsigned int count, unsigned long flags, pgprot_t prot) { struct vm_struct *area; -- 1.7.7.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/