linux-kernel - [PATCH v2 1/7] x86/retbleed: Check for AUTO in all cases

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Message-ID: <20250521-eibrs-fix-v2-1-70e2598e932c@linux.intel.com>
Date: Wed, 21 May 2025 19:44:22 -0700
From: Pawan Gupta <pawan.kumar.gupta@...ux.intel.com>
To: x86@...nel.org
Cc: David Kaplan <david.kaplan@....com>, linux-kernel@...r.kernel.org,
	"H. Peter Anvin" <hpa@...or.com>,
	Josh Poimboeuf <jpoimboe@...nel.org>
Subject: [PATCH v2 1/7] x86/retbleed: Check for AUTO in all cases

When none of mitigation option is selected, AUTO gets converted to NONE.
This is currently only being done for Intel. The check is useful in
general, make it common.

Signed-off-by: Pawan Gupta <pawan.kumar.gupta@...ux.intel.com>
---
 arch/x86/kernel/cpu/bugs.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index 7f94e6a5497d9a2d312a76095e48d6b364565777..19ff705b3128eacad5659990ed345d7a19bcb0f4 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -1294,15 +1294,15 @@ static void __init retbleed_update_mitigation(void)
 			if (retbleed_mitigation != RETBLEED_MITIGATION_STUFF)
 				pr_err(RETBLEED_INTEL_MSG);
 		}
-		/* If nothing has set the mitigation yet, default to NONE. */
-		if (retbleed_mitigation == RETBLEED_MITIGATION_AUTO)
-			retbleed_mitigation = RETBLEED_MITIGATION_NONE;
 	}
+
+	/* If nothing has set the mitigation yet, default to NONE. */
+	if (retbleed_mitigation == RETBLEED_MITIGATION_AUTO)
+		retbleed_mitigation = RETBLEED_MITIGATION_NONE;
 out:
 	pr_info("%s\n", retbleed_strings[retbleed_mitigation]);
 }
 
-
 static void __init retbleed_apply_mitigation(void)
 {
 	bool mitigate_smt = false;

-- 
2.34.1