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

From: tip-bot2 for Josh Poimboeuf
Date: Fri Oct 20 2023 - 07:38:19 EST


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

Commit-ID: 3fc7b28e831f15274a5526197b54a73a88620584
Gitweb: https://git.kernel.org/tip/3fc7b28e831f15274a5526197b54a73a88620584
Author: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
AuthorDate: Mon, 04 Sep 2023 22:04:50 -07:00
Committer: Borislav Petkov (AMD) <bp@xxxxxxxxx>
CommitterDate: Fri, 20 Oct 2023 11:44:26 +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@xxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Signed-off-by: Borislav Petkov (AMD) <bp@xxxxxxxxx>
Reviewed-by: Borislav Petkov (AMD) <bp@xxxxxxxxx>
Acked-by: Borislav Petkov (AMD) <bp@xxxxxxxxx>
Link: https://lore.kernel.org/r/7e7a12ea9d85a9f76ca16a3efb71f262dee46ab1.1693889988.git.jpoimboe@xxxxxxxxxx
---
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;