On Sat, Mar 16, 2024 at 07:02:19AM -0300, Thadeu Lima de Souza Cascardo wrote:
On Sat, Mar 16, 2024 at 05:41:16AM -0400, Sasha Levin wrote:
On Wed, Mar 13, 2024 at 07:42:50AM -0300, Thadeu Lima de Souza Cascardo wrote:
Peter Zijlstra (4): arch: Introduce CONFIG_FUNCTION_ALIGNMENT x86/alternatives: Introduce int3_emulate_jcc() x86/alternatives: Teach text_poke_bp() to patch Jcc.d32 instructions x86/static_call: Add support for Jcc tail-calls
Thomas Gleixner (1): x86/asm: Differentiate between code and function alignment
Is this not an issue on 6.1? I don't see d49a0626216b ("arch: Introduce CONFIG_FUNCTION_ALIGNMENT") in that tree.
-- Thanks, Sasha
The fix is really the last patch, 923510c88d2b ("x86/static_call: Add support for Jcc tail-calls"). I see that 6.1 got 3,4,5:
9d80f3e60043 x86/static_call: Add support for Jcc tail-calls c51a456b4179 x86/alternatives: Teach text_poke_bp() to patch Jcc.d32 instructions 75c066485bcb x86/alternatives: Introduce int3_emulate_jcc()
I can resubmit the series without the first two patches if that is preferred.
I'm just curious why we needed the first two patches on 5.15 but not on 6.1.