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authorJoel Stanley <joel@jms.id.au>2019-03-15 09:00:28 +0300
committerJoel Stanley <joel@jms.id.au>2019-03-15 09:01:07 +0300
commit9bd1e03005e74ecfe16f58143714f25793ae1c5d (patch)
tree557f67e781effd12a2fdf1816b757c61be8d832e /arch/x86/kernel/cpu/amd.c
parent7859d04be772a1d185de335a8e9d38ac03a89f3f (diff)
parentce194fa2b267e2018f42442347d90df01c4071d6 (diff)
downloadlinux-dev-4.19.tar.xz
Merge tag 'v4.19.29' into dev-4.19dev-4.19
This is the 4.19.29 stable release Signed-off-by: Joel Stanley <joel@jms.id.au>
Diffstat (limited to 'arch/x86/kernel/cpu/amd.c')
-rw-r--r--arch/x86/kernel/cpu/amd.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index eeea634bee0a..6a25278e0092 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -818,11 +818,9 @@ static void init_amd_bd(struct cpuinfo_x86 *c)
static void init_amd_zn(struct cpuinfo_x86 *c)
{
set_cpu_cap(c, X86_FEATURE_ZEN);
- /*
- * Fix erratum 1076: CPB feature bit not being set in CPUID. It affects
- * all up to and including B1.
- */
- if (c->x86_model <= 1 && c->x86_stepping <= 1)
+
+ /* Fix erratum 1076: CPB feature bit not being set in CPUID. */
+ if (!cpu_has(c, X86_FEATURE_CPB))
set_cpu_cap(c, X86_FEATURE_CPB);
}