From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030394Ab2HWKyv (ORCPT ); Thu, 23 Aug 2012 06:54:51 -0400 Received: from mail-wi0-f178.google.com ([209.85.212.178]:44534 "EHLO mail-wi0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030305Ab2HWKys (ORCPT ); Thu, 23 Aug 2012 06:54:48 -0400 Date: Thu, 23 Aug 2012 12:54:41 +0200 From: Ingo Molnar To: Linus Torvalds Cc: linux-kernel@vger.kernel.org, Thomas Gleixner , "H. Peter Anvin" , Andrew Morton Subject: [GIT PULL] x86 fixes Message-ID: <20120823105441.GA12301@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Linus, Please pull the latest x86-urgent-for-linus git tree from: git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-urgent-for-linus HEAD: 36bf50d7697be18c6bfd0401e037df10bff1e573 x86, microcode, AMD: Fix broken ucode patch size check This tree contains assorted fixlets: an alternatives patching crash fix, an irq migration/hotplug interaction fix, a fix for large AMD microcode images and a comment fixlet. Thanks, Ingo ------------------> Andreas Herrmann (1): x86, microcode, AMD: Fix broken ucode patch size check Avi Kivity (1): x86/alternatives: Fix p6 nops on non-modular kernels Liu, Chuansheng (1): x86/fixup_irq: Use cpu_online_mask instead of cpu_all_mask Richard Weinberger (1): x86/spinlocks: Fix comment in spinlock.h arch/x86/include/asm/spinlock.h | 3 +-- arch/x86/kernel/alternative.c | 2 +- arch/x86/kernel/irq.c | 2 +- arch/x86/kernel/microcode_amd.c | 7 ++++--- 4 files changed, 7 insertions(+), 7 deletions(-) diff --git a/arch/x86/include/asm/spinlock.h b/arch/x86/include/asm/spinlock.h index b315a33..33692ea 100644 --- a/arch/x86/include/asm/spinlock.h +++ b/arch/x86/include/asm/spinlock.h @@ -12,8 +12,7 @@ * Simple spin lock operations. There are two variants, one clears IRQ's * on the local processor, one does not. * - * These are fair FIFO ticket locks, which are currently limited to 256 - * CPUs. + * These are fair FIFO ticket locks, which support up to 2^16 CPUs. * * (the type definitions are in asm/spinlock_types.h) */ diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c index afb7ff7..ced4534 100644 --- a/arch/x86/kernel/alternative.c +++ b/arch/x86/kernel/alternative.c @@ -165,7 +165,7 @@ static const unsigned char * const k7_nops[ASM_NOP_MAX+2] = #endif #ifdef P6_NOP1 -static const unsigned char __initconst_or_module p6nops[] = +static const unsigned char p6nops[] = { P6_NOP1, P6_NOP2, diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c index 7ad683d..d44f782 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -270,7 +270,7 @@ void fixup_irqs(void) if (cpumask_any_and(affinity, cpu_online_mask) >= nr_cpu_ids) { break_affinity = 1; - affinity = cpu_all_mask; + affinity = cpu_online_mask; } chip = irq_data_get_irq_chip(data); diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c index 8a2ce8f..82746f9 100644 --- a/arch/x86/kernel/microcode_amd.c +++ b/arch/x86/kernel/microcode_amd.c @@ -143,11 +143,12 @@ static int get_matching_microcode(int cpu, const u8 *ucode_ptr, unsigned int *current_size) { struct microcode_header_amd *mc_hdr; - unsigned int actual_size; + unsigned int actual_size, patch_size; u16 equiv_cpu_id; /* size of the current patch we're staring at */ - *current_size = *(u32 *)(ucode_ptr + 4) + SECTION_HDR_SIZE; + patch_size = *(u32 *)(ucode_ptr + 4); + *current_size = patch_size + SECTION_HDR_SIZE; equiv_cpu_id = find_equiv_id(); if (!equiv_cpu_id) @@ -174,7 +175,7 @@ static int get_matching_microcode(int cpu, const u8 *ucode_ptr, /* * now that the header looks sane, verify its size */ - actual_size = verify_ucode_size(cpu, *current_size, leftover_size); + actual_size = verify_ucode_size(cpu, patch_size, leftover_size); if (!actual_size) return 0;