From: shechenglong <shechenglong@xfusion.com>
To: <mark.rutland@arm.com>, <catalin.marinas@arm.com>, <will@kernel.org>
Cc: <linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <stone.xulei@xfusion.com>,
<chenjialong@xfusion.com>, <yuxiating@xfusion.com>,
shechenglong <shechenglong@xfusion.com>
Subject: [PATCH v2 1/2] cpu:Remove the print when the\r CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY Kconfig option is disabled.
Date: Wed, 29 Oct 2025 11:45:53 +0800 [thread overview]
Message-ID: <20251029034554.1839-2-shechenglong@xfusion.com> (raw)
In-Reply-To: <20251029034554.1839-1-shechenglong@xfusion.com>
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@kernel.org>
Signed-off-by: shechenglong <shechenglong@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
next prev parent reply other threads:[~2025-10-29 4:01 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-18 6:49 [PATCH] cpu: fix hard lockup triggered during stress-ng stress testing shechenglong
2025-09-18 11:28 ` Catalin Marinas
2025-09-19 12:05 ` 答复: " shechenglong
2025-09-22 16:54 ` Catalin Marinas
2025-09-22 16:08 ` Mark Rutland
2025-09-24 12:32 ` [PATCH] cpu: fix hard lockup triggered by printk calls within scheduling context shechenglong
2025-09-25 13:48 ` Catalin Marinas
2025-10-03 14:23 ` Will Deacon
2025-10-20 14:51 ` [PATCH v2 0/2] arm64: spectre: Fix hard lockup and cleanup mitigation messages shechenglong
2025-10-20 14:51 ` [PATCH v2 1/2] cpu:Remove the print when the CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY Kconfig option is disabled shechenglong
2025-10-20 14:51 ` [PATCH v2 2/2] cpu: fix hard lockup triggered by printk calls within scheduling context shechenglong
2025-10-29 3:45 ` [RESEND v2 0/2] arm64: spectre: Fix hard lockup and cleanup mitigation messages shechenglong
2025-10-29 3:45 ` shechenglong [this message]
2025-10-30 14:48 ` [PATCH v2 1/2] cpu:Remove the print when the CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY Kconfig option is disabled Will Deacon
2025-10-29 3:45 ` [PATCH v2 2/2] cpu: fix hard lockup triggered by printk calls within scheduling context shechenglong
2025-10-30 14:50 ` Will Deacon
2025-10-31 9:15 ` [PATCH v3 0/2] arm64: spectre: Fix hard lockup and cleanup mitigation messages shechenglong
2025-10-31 9:15 ` [PATCH v3 1/2] cpu:Remove the print when the CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY Kconfig option is disabled shechenglong
2025-10-31 9:15 ` [PATCH v3 2/2] cpu: fix hard lockup triggered by printk calls within scheduling context shechenglong
2025-11-07 15:53 ` [PATCH v3 0/2] arm64: spectre: Fix hard lockup and cleanup mitigation messages Will Deacon
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