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authorTakashi Iwai <tiwai@suse.de>2023-02-16 14:18:54 +0100
committerTakashi Iwai <tiwai@suse.de>2023-02-16 14:18:54 +0100
commit5661706efa200252d0e9fea02421b0a5857808c3 (patch)
treeb6943001feff0af67c206a850be9c536fe3990b4 /arch/x86/kernel/cpu/bugs.c
parent5791c7699ff1b8be24e1e3b2c08b180598d3ba28 (diff)
parent5beb5627a2481aade9aa630b7ebb7f99442321b6 (diff)
Merge branch 'topic/apple-gmux' into for-next
Pull vga_switcheroo fix for Macs Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'arch/x86/kernel/cpu/bugs.c')
-rw-r--r--arch/x86/kernel/cpu/bugs.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index d970ddb0cc65..bca0bd8f4846 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -1981,6 +1981,8 @@ static int ib_prctl_set(struct task_struct *task, unsigned long ctrl)
if (ctrl == PR_SPEC_FORCE_DISABLE)
task_set_spec_ib_force_disable(task);
task_update_spec_tif(task);
+ if (task == current)
+ indirect_branch_prediction_barrier();
break;
default:
return -ERANGE;