diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.9.21/0006-x86-retpoline-Remove-the-esp-rsp-thunk.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.9.21/0006-x86-retpoline-Remove-the-esp-rsp-thunk.patch | 63 |
1 files changed, 0 insertions, 63 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.9.21/0006-x86-retpoline-Remove-the-esp-rsp-thunk.patch b/common/recipes-kernel/linux/linux-yocto-4.9.21/0006-x86-retpoline-Remove-the-esp-rsp-thunk.patch deleted file mode 100644 index e91992c0..00000000 --- a/common/recipes-kernel/linux/linux-yocto-4.9.21/0006-x86-retpoline-Remove-the-esp-rsp-thunk.patch +++ /dev/null @@ -1,63 +0,0 @@ -From bd9bf4f96e31d86d230db1f5243608f3a500123d Mon Sep 17 00:00:00 2001 -From: Waiman Long <longman@redhat.com> -Date: Mon, 22 Jan 2018 17:09:34 -0500 -Subject: [PATCH 06/42] x86/retpoline: Remove the esp/rsp thunk - -(cherry picked from commit 1df37383a8aeabb9b418698f0bcdffea01f4b1b2) - -It doesn't make sense to have an indirect call thunk with esp/rsp as -retpoline code won't work correctly with the stack pointer register. -Removing it will help compiler writers to catch error in case such -a thunk call is emitted incorrectly. - -Fixes: 76b043848fd2 ("x86/retpoline: Add initial retpoline support") -Suggested-by: Jeff Law <law@redhat.com> -Signed-off-by: Waiman Long <longman@redhat.com> -Signed-off-by: Thomas Gleixner <tglx@linutronix.de> -Acked-by: David Woodhouse <dwmw@amazon.co.uk> -Cc: Tom Lendacky <thomas.lendacky@amd.com> -Cc: Kees Cook <keescook@google.com> -Cc: Andi Kleen <ak@linux.intel.com> -Cc: Tim Chen <tim.c.chen@linux.intel.com> -Cc: Peter Zijlstra <peterz@infradead.org> -Cc: Linus Torvalds <torvalds@linux-foundation.org> -Cc: Jiri Kosina <jikos@kernel.org> -Cc: Andy Lutomirski <luto@amacapital.net> -Cc: Dave Hansen <dave.hansen@intel.com> -Cc: Josh Poimboeuf <jpoimboe@redhat.com> -Cc: Arjan van de Ven <arjan@linux.intel.com> -Cc: Greg Kroah-Hartman <gregkh@linux-foundation.org> -Cc: Paul Turner <pjt@google.com> -Link: https://lkml.kernel.org/r/1516658974-27852-1-git-send-email-longman@redhat.com -Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> -Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ---- - arch/x86/include/asm/asm-prototypes.h | 1 - - arch/x86/lib/retpoline.S | 1 - - 2 files changed, 2 deletions(-) - -diff --git a/arch/x86/include/asm/asm-prototypes.h b/arch/x86/include/asm/asm-prototypes.h -index b15aa40..5a25ada 100644 ---- a/arch/x86/include/asm/asm-prototypes.h -+++ b/arch/x86/include/asm/asm-prototypes.h -@@ -37,5 +37,4 @@ INDIRECT_THUNK(dx) - INDIRECT_THUNK(si) - INDIRECT_THUNK(di) - INDIRECT_THUNK(bp) --INDIRECT_THUNK(sp) - #endif /* CONFIG_RETPOLINE */ -diff --git a/arch/x86/lib/retpoline.S b/arch/x86/lib/retpoline.S -index dfb2ba9..c909961 100644 ---- a/arch/x86/lib/retpoline.S -+++ b/arch/x86/lib/retpoline.S -@@ -36,7 +36,6 @@ GENERATE_THUNK(_ASM_DX) - GENERATE_THUNK(_ASM_SI) - GENERATE_THUNK(_ASM_DI) - GENERATE_THUNK(_ASM_BP) --GENERATE_THUNK(_ASM_SP) - #ifdef CONFIG_64BIT - GENERATE_THUNK(r8) - GENERATE_THUNK(r9) --- -2.7.4 - |