[PATCH 08/19] arm64: smp: Don't bother printing the I-cache policy for each CPU

Will Deacon will at kernel.org
Mon Sep 7 09:40:11 PDT 2026


The I-cache policy isn't particularly interesting but printing it early
can result in unnecessary serialisation of onlining CPUs.

Remove the pointless print.

Signed-off-by: Will Deacon <will at kernel.org>
---
 arch/arm64/kernel/cpuinfo.c | 16 ----------------
 1 file changed, 16 deletions(-)

diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c
index b423301a13cc..6dbea3a8bb23 100644
--- a/arch/arm64/kernel/cpuinfo.c
+++ b/arch/arm64/kernel/cpuinfo.c
@@ -31,19 +31,6 @@
  * values depending on configuration at or after reset.
  */
 DEFINE_PER_CPU(struct cpuinfo_arm64, cpu_data);
-
-static inline const char *icache_policy_str(int l1ip)
-{
-	switch (l1ip) {
-	case CTR_EL0_L1Ip_VIPT:
-		return "VIPT";
-	case CTR_EL0_L1Ip_PIPT:
-		return "PIPT";
-	default:
-		return "RESERVED/UNKNOWN";
-	}
-}
-
 unsigned long __icache_flags;
 
 static const char *const hwcap_str[] = {
@@ -424,7 +411,6 @@ device_initcall(cpuinfo_regs_init);
 
 static void cpuinfo_detect_icache_policy(struct cpuinfo_arm64 *info)
 {
-	unsigned int cpu = smp_processor_id();
 	u32 l1ip = CTR_L1IP(info->reg_ctr);
 
 	switch (l1ip) {
@@ -436,8 +422,6 @@ static void cpuinfo_detect_icache_policy(struct cpuinfo_arm64 *info)
 		set_bit(ICACHEF_ALIASING, &__icache_flags);
 		break;
 	}
-
-	pr_info("Detected %s I-cache on CPU%d\n", icache_policy_str(l1ip), cpu);
 }
 
 static void __cpuinfo_store_cpu_32bit(struct cpuinfo_32bit *info)
-- 
2.55.0.979.g7e5102b832-goog




More information about the linux-arm-kernel mailing list