diff options
author | Waiman Long <[email protected]> | 2018-01-22 17:09:34 -0500 |
---|---|---|
committer | Thomas Gleixner <[email protected]> | 2018-01-24 12:31:55 +0100 |
commit | 1df37383a8aeabb9b418698f0bcdffea01f4b1b2 (patch) | |
tree | ea64df099e00740c4e153dccc4ad3de8ad630f85 /tools/testing/selftests/bpf/prog_tests | |
parent | 3f7d875566d8e79c5e0b2c9a413e91b2c29e0854 (diff) |
x86/retpoline: Remove the esp/rsp thunk
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 <[email protected]>
Signed-off-by: Waiman Long <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Acked-by: David Woodhouse <[email protected]>
Cc: Tom Lendacky <[email protected]>
Cc: Kees Cook <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Tim Chen <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Jiri Kosina <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: Josh Poimboeuf <[email protected]>
Cc: Arjan van de Ven <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Paul Turner <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests')
0 files changed, 0 insertions, 0 deletions