Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752841AbbFHIfX (ORCPT ); Mon, 8 Jun 2015 04:35:23 -0400 Received: from mail-wi0-f177.google.com ([209.85.212.177]:35133 "EHLO mail-wi0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752188AbbFHIfP (ORCPT ); Mon, 8 Jun 2015 04:35:15 -0400 From: Ingo Molnar To: linux-kernel@vger.kernel.org Cc: Andy Lutomirski , Denys Vlasenko , Brian Gerst , Peter Zijlstra , Borislav Petkov , "H. Peter Anvin" , Linus Torvalds , Oleg Nesterov , Thomas Gleixner Subject: [PATCH 0/4] x86: Untangle and standardize x86 system call entry point names Date: Mon, 8 Jun 2015 10:34:57 +0200 Message-Id: <1433752501-15901-1-git-send-email-mingo@kernel.org> X-Mailer: git-send-email 2.1.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2423 Lines: 68 This series does the following renames: system_call (32) -> entry_INT80_32 system_call (64) -> entry_SYSCALL_64 ia32_cstar_target -> entry_SYSCALL_compat ia32_syscall -> entry_INT80_compat ia32_sysenter_target (32) -> entry_SYSENTER_32 ia32_sysenter_target (64) -> entry_SYSENTER_compat As can be seen from that list alone, the naming was a mess: - system_call() had two distinct uses, depending on bitness: INT80 entry on 32-bit, SYSCALL entry on 64-bit. - ia32_sysenter_target with its different semantics on 32-bit and compat kernels had the same name as well. - 'ia32' in a generic x86 name makes no sense, neither does 'cstar'. It was so confusing that even the x86 documentation got it wrong: "- ia32_syscall, ia32_sysenter: syscall and sysenter from 32-bit" In reality ia32_syscall is an INT80 entry. The new naming scheme is simple, coherent and unambiguous in any context: entry_MNEMONIC_qualifier where: - 'MNEMONIC' is one of INT80, SYSCALL or SYSENTER - 'qualifier' is one of _32, _64 or _compat. Plus while at it I've done some cleanups to the native 32-bit entry code as well. Thanks, Ingo ====================================> Ingo Molnar (4): x86/asm/entry: Rename compat syscall entry points x86/asm/entry: Untangle 'ia32_sysenter_target' into two entry points: entry_SYSENTER_32 and entry_SYSENTER_compat x86/asm/entry: Untangle 'system_call' into two entry points: entry_SYSCALL_64 and entry_INT80_32 x86/asm/entry/32: Clean up entry_32.S Documentation/x86/entry_64.txt | 4 +- arch/x86/entry/entry_32.S | 1149 +++++++++++++++++++++++++++++----------------------------- arch/x86/entry/entry_64.S | 10 +- arch/x86/entry/entry_64_compat.S | 12 +- arch/x86/entry/syscall_32.c | 6 +- arch/x86/include/asm/proto.h | 10 +- arch/x86/kernel/asm-offsets_64.c | 2 +- arch/x86/kernel/cpu/common.c | 8 +- arch/x86/kernel/traps.c | 7 +- arch/x86/xen/xen-asm_64.S | 6 +- 10 files changed, 607 insertions(+), 607 deletions(-) -- 2.1.4 -- 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/