On Wed, Jun 02 2021 at 15:12, Borislav Petkov wrote:
>> /* Validate an xstate header supplied by userspace (ptrace or sigreturn) */
>> -int validate_user_xstate_header(const struct xstate_header *hdr)
>> +static int validate_user_xstate_header(const struct xstate_header *hdr)
>
> Can't do that yet - that one is still called from regset.c:
>
> arch/x86/kernel/fpu/regset.c: In function ‘xstateregs_set’:
> arch/x86/kernel/fpu/regset.c:135:10: error: implicit declaration of function ‘validate_user_xstate_header’ [-Werror=implicit-function-declaration]
> 135 | ret = validate_user_xstate_header(&xsave->header);
> | ^~~~~~~~~~~~~~~~~~~~~~~~~~~
> cc1: some warnings being treated as errors
>
> Maybe after the 5th patch which kills that usage too.
Gah, yes. I had the patches ordered differently and then failed to do a
full step by step recompile after reshuffling them. Fixed localy.
Thanks,
tglx
