git: f894975dda64 - stable/13 - libc/x86/__vdso_gettc.c::tsc_selector_idx(): cpu_id is calculated but not used

The branch stable/13 has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=f894975dda644975cf90b86bc408c11a948eafe0

commit f894975dda644975cf90b86bc408c11a948eafe0
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2021-11-28 03:14:20 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2021-12-06 00:23:45 +0000

    libc/x86/__vdso_gettc.c::tsc_selector_idx(): cpu_id is calculated but not used
    
    (cherry picked from commit 4b6f4db3410d3d00c5e0e597243bb7d945356213)
---
 lib/libc/x86/sys/__vdso_gettc.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/lib/libc/x86/sys/__vdso_gettc.c b/lib/libc/x86/sys/__vdso_gettc.c
index 5cc847e31c0e..b3f3de9f4203 100644
--- a/lib/libc/x86/sys/__vdso_gettc.c
+++ b/lib/libc/x86/sys/__vdso_gettc.c
@@ -147,7 +147,7 @@ static const struct tsc_selector_tag tsc_selector[] = {
 static int
 tsc_selector_idx(u_int cpu_feature)
 {
-	u_int amd_feature, cpu_exthigh, cpu_id, p[4], v[3];
+	u_int amd_feature, cpu_exthigh, p[4], v[3];
 	static const char amd_id[] = "AuthenticAMD";
 	static const char hygon_id[] = "HygonGenuine";
 	bool amd_cpu;
@@ -162,9 +162,6 @@ tsc_selector_idx(u_int cpu_feature)
 	amd_cpu = memcmp(v, amd_id, sizeof(amd_id) - 1) == 0 ||
 	    memcmp(v, hygon_id, sizeof(hygon_id) - 1) == 0;
 
-	do_cpuid(1, p);
-	cpu_id = p[0];
-
 	if (cpu_feature != 0) {
 		do_cpuid(0x80000000, p);
 		cpu_exthigh = p[0];