x86/retpoline: Remove minimal retpoline support
authorZhenzhong Duan <zhenzhong.duan@oracle.com>
Fri, 2 Nov 2018 08:45:41 +0000 (01:45 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 5 Dec 2018 18:32:01 +0000 (19:32 +0100)
commit90d2c53fa196735c5bc9b5b64c515c79d904ed7a
tree0c8e0677acd92a78e5e22798a024b80f918b09df
parent8c4ad5d39144776c2987e81609204e1766ed4190
x86/retpoline: Remove minimal retpoline support

commit ef014aae8f1cd2793e4e014bbb102bed53f852b7 upstream

Now that CONFIG_RETPOLINE hard depends on compiler support, there is no
reason to keep the minimal retpoline support around which only provided
basic protection in the assembly files.

Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@oracle.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Borislav Petkov <bp@suse.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: <srinivas.eeda@oracle.com>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/f06f0a89-5587-45db-8ed2-0a9d6638d5c0@default
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/x86/include/asm/nospec-branch.h
arch/x86/kernel/cpu/bugs.c