Re: [PATCH 10/12] efi/libstub: Remove obsolete .note.gnu.property workaround

[Ard Biesheuvel]

On Mon, 17 Aug 2026, at 22:54, Nick Desaulniers wrote:
> On Fri, Aug 14, 2026 at 9:45 PM Josh Poimboeuf <jpoimboe@xxxxxxxxxx> wrote:
>>
>> Commit e2179a09ab08 ("efi/libstub: Disable -mbranch-protection") added
>> --remove-section=.note.gnu.property to the stub objcopy invocation to
>> work around a Clang bug where the note was emitted for code-less object
>> files even with -mbranch-protection=none.
>>
>> That was fixed by LLVM commit a48f6079f288 ("[AArch64] Generate
>> .note.gnu.property based on module flags") which was released with
>> Clang 12.  The minimum Clang version is now Clang 17, so this workaround
>> is no longer needed.
>>
>> On arm64, the stub also no longer builds with -mbranch-protection=none,
>> as it has inherited the kernel's flags since commit 8358098b9787
>> ("arm64: efi: Enable BTI codegen and add PE/COFF annotation").
>>
>> Remove the workaround.  This fixes BTI on arm64, and is a no-op on
>> RISC-V and LoongArch where the vmlinux generic NOTES macro discards it,
>> and the x86 and ARM decompressors discard .note.* explicitly.
>>
>> Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
>> ---
>>  drivers/firmware/efi/libstub/Makefile | 6 ------
>>  1 file changed, 6 deletions(-)
>>
>
> I verified the above all looks correct.  Thanks for the cleanup.
> Reviewed-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
>

Thanks. I've cherry-picked just this patch for v7.3