syscalls/x86: Unconditionally enable 'struct pt_regs' based syscalls on x86_64
authorDominik Brodowski <linux@dominikbrodowski.net>
Thu, 5 Apr 2018 09:53:05 +0000 (11:53 +0200)
committerIngo Molnar <mingo@kernel.org>
Thu, 5 Apr 2018 14:59:38 +0000 (16:59 +0200)
commitf8781c4a226319fe60e652118b90cf094ccfe747
tree1c496211debfc33f955021c62898da4c08f052cd
parentebeb8c82ffaf94435806ff0b686fffd41dd410b5
syscalls/x86: Unconditionally enable 'struct pt_regs' based syscalls on x86_64

Removing CONFIG_SYSCALL_PTREGS from arch/x86/Kconfig and simply selecting
ARCH_HAS_SYSCALL_WRAPPER unconditionally on x86-64 allows us to simplify
several codepaths.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20180405095307.3730-7-linux@dominikbrodowski.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
arch/x86/Kconfig
arch/x86/entry/common.c
arch/x86/entry/syscall_32.c
arch/x86/entry/syscall_64.c
arch/x86/entry/vsyscall/vsyscall_64.c
arch/x86/include/asm/syscall.h
arch/x86/include/asm/syscalls.h