um: fix unused variable warning

The code was updated to access the PID of the userspace stub process in
a different way, making the local cpu variable obsolete. Remove it.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202506050008.AwXLNxQX-lkp@intel.com/
Fixes: 406d17c6c370 ("um: Implement kernel side of SECCOMP based process handling")
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Link: https://patch.msgid.link/20250605050325.1077208-1-benjamin@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/arch/x86/um/tls_32.c b/arch/x86/um/tls_32.c
index 21cbb70..cb3f176 100644 (file)
--- a/arch/x86/um/tls_32.c
+++ b/arch/x86/um/tls_32.c
@@ -25,7 +25,6 @@ int host_gdt_entry_tls_min;
 static int do_set_thread_area(struct task_struct* task, struct user_desc *info)
 {
        int ret;
-       u32 cpu;
 
        if (info->entry_number < host_gdt_entry_tls_min ||
            info->entry_number >= host_gdt_entry_tls_min + GDT_ENTRY_TLS_ENTRIES)
@@ -41,9 +40,7 @@ static int do_set_thread_area(struct task_struct* task, struct user_desc *info)
                return 0;
        }
 
-       cpu = get_cpu();
        ret = os_set_thread_area(info, task->mm->context.id.pid);
-       put_cpu();
 
        if (ret)
                printk(KERN_ERR "PTRACE_SET_THREAD_AREA failed, err = %d, "