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authorJakub Kicinski <kuba@kernel.org>2025-10-16 10:53:13 -0700
committerJakub Kicinski <kuba@kernel.org>2025-10-31 06:46:03 -0700
commit1a2352ad82b515035efe563f997ef8f5ca4f8080 (patch)
tree5ab09f8bb295fef3b0ae901438132fbe757e9d95 /arch/x86/kernel
parent0d0eb186421d0886ac466008235f6d9eedaf918e (diff)
parente5763491237ffee22d9b554febc2d00669f81dee (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.18-rc4). No conflicts, adjacent changes: drivers/net/ethernet/stmicro/stmmac/stmmac_main.c ded9813d17d3 ("net: stmmac: Consider Tx VLAN offload tag length for maxSDU") 26ab9830beab ("net: stmmac: replace has_xxxx with core_type") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r--arch/x86/kernel/cpu/bugs.c11
-rw-r--r--arch/x86/kernel/cpu/microcode/amd.c2
-rw-r--r--arch/x86/kernel/cpu/resctrl/monitor.c11
3 files changed, 14 insertions, 10 deletions
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index 6a526ae1fe99..d7fa03bf51b4 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -1463,7 +1463,9 @@ static void __init retbleed_update_mitigation(void)
break;
default:
if (retbleed_mitigation != RETBLEED_MITIGATION_STUFF) {
- pr_err(RETBLEED_INTEL_MSG);
+ if (retbleed_mitigation != RETBLEED_MITIGATION_NONE)
+ pr_err(RETBLEED_INTEL_MSG);
+
retbleed_mitigation = RETBLEED_MITIGATION_NONE;
}
}
@@ -1825,13 +1827,6 @@ void unpriv_ebpf_notify(int new_state)
}
#endif
-static inline bool match_option(const char *arg, int arglen, const char *opt)
-{
- int len = strlen(opt);
-
- return len == arglen && !strncmp(arg, opt, len);
-}
-
/* The kernel command line selection for spectre v2 */
enum spectre_v2_mitigation_cmd {
SPECTRE_V2_CMD_NONE,
diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c
index cdce885e2fd5..28ed8c089024 100644
--- a/arch/x86/kernel/cpu/microcode/amd.c
+++ b/arch/x86/kernel/cpu/microcode/amd.c
@@ -194,7 +194,7 @@ static bool need_sha_check(u32 cur_rev)
}
switch (cur_rev >> 8) {
- case 0x80012: return cur_rev <= 0x800126f; break;
+ case 0x80012: return cur_rev <= 0x8001277; break;
case 0x80082: return cur_rev <= 0x800820f; break;
case 0x83010: return cur_rev <= 0x830107c; break;
case 0x86001: return cur_rev <= 0x860010e; break;
diff --git a/arch/x86/kernel/cpu/resctrl/monitor.c b/arch/x86/kernel/cpu/resctrl/monitor.c
index 2cd25a0d4637..fe1a2aa53c16 100644
--- a/arch/x86/kernel/cpu/resctrl/monitor.c
+++ b/arch/x86/kernel/cpu/resctrl/monitor.c
@@ -458,7 +458,16 @@ int __init rdt_get_mon_l3_config(struct rdt_resource *r)
r->mon.mbm_cfg_mask = ecx & MAX_EVT_CONFIG_BITS;
}
- if (rdt_cpu_has(X86_FEATURE_ABMC)) {
+ /*
+ * resctrl assumes a system that supports assignable counters can
+ * switch to "default" mode. Ensure that there is a "default" mode
+ * to switch to. This enforces a dependency between the independent
+ * X86_FEATURE_ABMC and X86_FEATURE_CQM_MBM_TOTAL/X86_FEATURE_CQM_MBM_LOCAL
+ * hardware features.
+ */
+ if (rdt_cpu_has(X86_FEATURE_ABMC) &&
+ (rdt_cpu_has(X86_FEATURE_CQM_MBM_TOTAL) ||
+ rdt_cpu_has(X86_FEATURE_CQM_MBM_LOCAL))) {
r->mon.mbm_cntr_assignable = true;
cpuid_count(0x80000020, 5, &eax, &ebx, &ecx, &edx);
r->mon.num_mbm_cntrs = (ebx & GENMASK(15, 0)) + 1;