linux-kernel - [tip: x86/bugs] x86/srso: Print actual mitigation if requested mitigation isn't possible

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Date:   Sat, 23 Sep 2023 12:20:12 -0000
From:   "tip-bot2 for Josh Poimboeuf" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Josh Poimboeuf <jpoimboe@...nel.org>,
        Ingo Molnar <mingo@...nel.org>,
        "Borislav Petkov (AMD)" <bp@...en8.de>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [tip: x86/bugs] x86/srso: Print actual mitigation if requested
 mitigation isn't possible

The following commit has been merged into the x86/bugs branch of tip:

Commit-ID:     f9548addc12d02ee731ccd4a91ae55657e819d7d
Gitweb:        https://git.kernel.org/tip/f9548addc12d02ee731ccd4a91ae55657e819d7d
Author:        Josh Poimboeuf <jpoimboe@...nel.org>
AuthorDate:    Mon, 04 Sep 2023 22:04:50 -07:00
Committer:     Ingo Molnar <mingo@...nel.org>
CommitterDate: Sat, 23 Sep 2023 14:13:02 +02:00

x86/srso: Print actual mitigation if requested mitigation isn't possible

If the kernel wasn't compiled to support the requested option, print the
actual option that ends up getting used.

Signed-off-by: Josh Poimboeuf <jpoimboe@...nel.org>
Signed-off-by: Ingo Molnar <mingo@...nel.org>
Reviewed-by: Borislav Petkov (AMD) <bp@...en8.de>
Acked-by: Borislav Petkov (AMD) <bp@...en8.de>
Link: https://lore.kernel.org/r/7e7a12ea9d85a9f76ca16a3efb71f262dee46ab1.1693889988.git.jpoimboe@kernel.org
---
 arch/x86/kernel/cpu/bugs.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index 2859a54..235c0e0 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -2461,7 +2461,6 @@ static void __init srso_select_mitigation(void)
 			srso_mitigation = SRSO_MITIGATION_SAFE_RET;
 		} else {
 			pr_err("WARNING: kernel not compiled with CPU_SRSO.\n");
-			goto pred_cmd;
 		}
 		break;
 
@@ -2473,7 +2472,6 @@ static void __init srso_select_mitigation(void)
 			}
 		} else {
 			pr_err("WARNING: kernel not compiled with CPU_IBPB_ENTRY.\n");
-			goto pred_cmd;
 		}
 		break;
 
@@ -2485,7 +2483,6 @@ static void __init srso_select_mitigation(void)
 			}
 		} else {
 			pr_err("WARNING: kernel not compiled with CPU_SRSO.\n");
-			goto pred_cmd;
                 }
 		break;