[PATCH v3 1/2] cpu:Remove the print when the CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY Kconfig option is disabled.

shechenglong shechenglong at xfusion.com
Fri Oct 31 02:15:05 PDT 2025


Following the pattern established with other Spectre mitigations,
do not prints a message when the CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
Kconfig option is disabled.

Link: https://patchwork.kernel.org/project/linux-arm-kernel/patch/20250918064907.1832-1-shechenglong@xfusion.com/
Suggested-by: Will Deacon <will at kernel.org>
Signed-off-by: shechenglong <shechenglong at xfusion.com>
---
 arch/arm64/kernel/proton-pack.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/arm64/kernel/proton-pack.c b/arch/arm64/kernel/proton-pack.c
index f9a32dfde006..d833b7c1bba8 100644
--- a/arch/arm64/kernel/proton-pack.c
+++ b/arch/arm64/kernel/proton-pack.c
@@ -1042,8 +1042,6 @@ void spectre_bhb_enable_mitigation(const struct arm64_cpu_capabilities *entry)
 
 	if (arm64_get_spectre_v2_state() == SPECTRE_VULNERABLE) {
 		/* No point mitigating Spectre-BHB alone. */
-	} else if (!IS_ENABLED(CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY)) {
-		pr_info_once("spectre-bhb mitigation disabled by compile time option\n");
 	} else if (cpu_mitigations_off() || __nospectre_bhb) {
 		pr_info_once("spectre-bhb mitigation disabled by command line option\n");
 	} else if (supports_ecbhb(SCOPE_LOCAL_CPU)) {
-- 
2.33.0




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