From: Benjamin Berg <benjamin.berg@intel.com>
Date: Thu, 5 Jun 2025 05:03:24 +0000 (+0200)
Subject: um: fix unused variable warning
X-Git-Tag: v6.16-rc1~38^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=27a041040f2c6cfbbc24053bce9acb2e801e4e71;p=thirdparty%2Fkernel%2Fstable.git

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 21cbb70cf7712..cb3f17627d165 100644
--- 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, "