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authorJakub Kicinski <kuba@kernel.org>2025-06-12 10:08:24 -0700
committerJakub Kicinski <kuba@kernel.org>2025-08-29 11:48:01 -0700
commitd23ad54de795ec0054f90ecb03b41e8f2c410f3a (patch)
tree93ee9c1bfac4b54c567cc613039d4898cac04871 /arch/x86/kernel/cpu/amd.c
parent29828b81a46a3ae55ebc053fce512219172560ba (diff)
parent9c736ace0666efe68efd53fcdfa2c6653c3e0e72 (diff)
downloadlwn-d23ad54de795ec0054f90ecb03b41e8f2c410f3a.tar.gz
lwn-d23ad54de795ec0054f90ecb03b41e8f2c410f3a.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.17-rc4). No conflicts. Adjacent changes: drivers/net/ethernet/intel/idpf/idpf_txrx.c 02614eee26fb ("idpf: do not linearize big TSO packets") 6c4e68480238 ("idpf: remove obsolete stashing code") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'arch/x86/kernel/cpu/amd.c')
-rw-r--r--arch/x86/kernel/cpu/amd.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index a5ece6ebe8a7..a6f88ca1a6b4 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -1326,8 +1326,8 @@ static const char * const s5_reset_reason_txt[] = {
static __init int print_s5_reset_status_mmio(void)
{
- unsigned long value;
void __iomem *addr;
+ u32 value;
int i;
if (!cpu_feature_enabled(X86_FEATURE_ZEN))
@@ -1340,12 +1340,16 @@ static __init int print_s5_reset_status_mmio(void)
value = ioread32(addr);
iounmap(addr);
+ /* Value with "all bits set" is an error response and should be ignored. */
+ if (value == U32_MAX)
+ return 0;
+
for (i = 0; i < ARRAY_SIZE(s5_reset_reason_txt); i++) {
if (!(value & BIT(i)))
continue;
if (s5_reset_reason_txt[i]) {
- pr_info("x86/amd: Previous system reset reason [0x%08lx]: %s\n",
+ pr_info("x86/amd: Previous system reset reason [0x%08x]: %s\n",
value, s5_reset_reason_txt[i]);
}
}