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authorUros Bizjak <ubizjak@gmail.com>2026-03-30 11:59:23 +0300
committerIngo Molnar <mingo@kernel.org>2026-03-31 10:50:11 +0300
commit3b19e22cffe61bcdf10ee5e7584cfa3c1c54dc92 (patch)
tree3d9383d1cf21423bcf971b5f5eabb9e9274f2712
parent6829f19810e96903d7b532145c3d1701b4d9a0f6 (diff)
downloadlinux-3b19e22cffe61bcdf10ee5e7584cfa3c1c54dc92.tar.xz
x86/tls: Clean up 'sel' variable usage in do_set_thread_area()
The top-level 'sel' variable in do_set_thread_area() was previously marked __maybe_unused, but it is now only needed locally when updating the current task. Remove the unused top-level declaration and introduce a local 'sel' variable where it is actually used No functional change intended. Signed-off-by: Uros Bizjak <ubizjak@gmail.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: https://patch.msgid.link/20260330085938.67985-4-ubizjak@gmail.com
-rw-r--r--arch/x86/kernel/tls.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c
index 3ffbab0081f4..86b4186a0d4f 100644
--- a/arch/x86/kernel/tls.c
+++ b/arch/x86/kernel/tls.c
@@ -117,7 +117,7 @@ int do_set_thread_area(struct task_struct *p, int idx,
int can_allocate)
{
struct user_desc info;
- unsigned short __maybe_unused sel, modified_sel;
+ unsigned short modified_sel;
if (copy_from_user(&info, u_info, sizeof(info)))
return -EFAULT;
@@ -153,6 +153,8 @@ int do_set_thread_area(struct task_struct *p, int idx,
modified_sel = (idx << 3) | 3;
if (p == current) {
+ unsigned short sel;
+
#ifdef CONFIG_X86_64
savesegment(ds, sel);
if (sel == modified_sel)