Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fix from Catalin Marinas:
"arm64/ptrace fix to use the correct SVE layout based on the saved
floating point state rather than the TIF_SVE flag. The latter may be
left on during syscalls even if the SVE state is discarded"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64/ptrace: Use saved floating point state type to determine SVE layout
+1
-4
+1
-4
arch/arm64/kernel/ptrace.c
+1
-4
arch/arm64/kernel/ptrace.c
···
761
761
{
762
762
unsigned int vq;
763
763
bool active;
764
-
bool fpsimd_only;
765
764
enum vec_type task_type;
766
765
767
766
memset(header, 0, sizeof(*header));
···
776
777
case ARM64_VEC_SVE:
777
778
if (test_tsk_thread_flag(target, TIF_SVE_VL_INHERIT))
778
779
header->flags |= SVE_PT_VL_INHERIT;
779
-
fpsimd_only = !test_tsk_thread_flag(target, TIF_SVE);
780
780
break;
781
781
case ARM64_VEC_SME:
782
782
if (test_tsk_thread_flag(target, TIF_SME_VL_INHERIT))
783
783
header->flags |= SVE_PT_VL_INHERIT;
784
-
fpsimd_only = false;
785
784
break;
786
785
default:
787
786
WARN_ON_ONCE(1);
···
787
790
}
788
791
789
792
if (active) {
790
-
if (fpsimd_only) {
793
+
if (target->thread.fp_type == FP_STATE_FPSIMD) {
791
794
header->flags |= SVE_PT_REGS_FPSIMD;
792
795
} else {
793
796
header->flags |= SVE_PT_REGS_SVE;