From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756675AbbLAPBk (ORCPT ); Tue, 1 Dec 2015 10:01:40 -0500 Received: from mail.skyhub.de ([78.46.96.112]:49668 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755987AbbLAPAc (ORCPT ); Tue, 1 Dec 2015 10:00:32 -0500 From: Borislav Petkov To: X86 ML Cc: LKML Subject: [PATCH 0/4] x86/cpufeature: Cleanup stuff more Date: Tue, 1 Dec 2015 16:00:19 +0100 Message-Id: <1448982023-19187-1-git-send-email-bp@alien8.de> X-Mailer: git-send-email 2.3.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Borislav Petkov Hi all, this is the second submission. Changes from the previous one is that we're much more considerate so that we don't enlarge kernel .text and cause tinyconfig growth. Patch 4 adds a default-off config option which disables static_cpu_has* macros from being built and saves us ~1.6K .text. 0day report for this is: i386-tinyconfig vmlinux size: +-------+------+------+-----+---------------------------------------------------------------------------------+ | TOTAL | TEXT | DATA | BSS | | +-------+------+------+-----+---------------------------------------------------------------------------------+ | -1512 | -352 | 0 | 0 | df63d2e25f80 x86/cpu: Provide a config option to disable static_cpu_has | | +5 | 0 | 0 | 0 | 8b9e9097bf18 Merge remote-tracking branch 'tip/x86/cleanups' into cpufeature-v3 | | -1507 | -352 | 0 | 0 | ALL COMMITS | +-------+------+------+-----+---------------------------------------------------------------------------------+ The remaining cpu_has_xx uglies will be handled later, in a follow-up patchset. Thanks. Changelog: v0: so this should take care of cleaning up some aspects of our cpufeatures handling. Patches should be pretty self-explanatory but let me send them out as an RFC - I might've missed something obvious of the sort "but but, you can't do that..." Borislav Petkov (4): x86/cpufeature: Move some of the scattered feature bits to x86_capability x86/cpufeature: Cleanup get_cpu_cap() x86/cpufeature: Remove unused and seldomly used cpu_has_xx macros x86/cpu: Provide a config option to disable static_cpu_has arch/x86/Kconfig | 11 +++ arch/x86/crypto/chacha20_glue.c | 2 +- arch/x86/crypto/crc32c-intel_glue.c | 2 +- arch/x86/include/asm/cmpxchg_32.h | 2 +- arch/x86/include/asm/cmpxchg_64.h | 2 +- arch/x86/include/asm/cpufeature.h | 115 ++++++++++++++-------------- arch/x86/include/asm/xor_32.h | 2 +- arch/x86/kernel/cpu/amd.c | 4 +- arch/x86/kernel/cpu/centaur.c | 2 +- arch/x86/kernel/cpu/common.c | 52 +++++++------ arch/x86/kernel/cpu/intel.c | 3 +- arch/x86/kernel/cpu/intel_cacheinfo.c | 6 +- arch/x86/kernel/cpu/mtrr/generic.c | 2 +- arch/x86/kernel/cpu/mtrr/main.c | 2 +- arch/x86/kernel/cpu/perf_event_amd.c | 4 +- arch/x86/kernel/cpu/perf_event_amd_uncore.c | 11 +-- arch/x86/kernel/cpu/scattered.c | 20 ----- arch/x86/kernel/cpu/transmeta.c | 4 +- arch/x86/kernel/fpu/init.c | 4 +- arch/x86/kernel/hw_breakpoint.c | 6 +- arch/x86/kernel/smpboot.c | 2 +- arch/x86/kernel/vm86_32.c | 4 +- arch/x86/mm/setup_nx.c | 4 +- drivers/char/hw_random/via-rng.c | 5 +- drivers/crypto/padlock-aes.c | 2 +- drivers/crypto/padlock-sha.c | 2 +- drivers/iommu/intel_irq_remapping.c | 2 +- fs/btrfs/disk-io.c | 2 +- 28 files changed, 141 insertions(+), 138 deletions(-) -- 2.3.5