"Maciej W. Rozycki" [off-list ref] writes:
On Wed, 20 Oct 2021, Eric W. Biederman wrote:
quoted
When an instruction to save or restore a register from the stack fails
in _save_fp_context or _restore_fp_context return with -EFAULT. This
change was made to r2300_fpu.S[1] but it looks like it got lost with
the introduction of EX2[2]. This is also what the other implementation
of _save_fp_context and _restore_fp_context in r4k_fpu.S does, and
what is needed for the callers to be able to handle the error.
Umm, right, good catch, thanks! I think this ought to be backported.
Acked-by: Maciej W. Rozycki <macro@orcam.me.uk>
I will add a CC stable. So it can be backported after it is merged.
Eric