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Subject[PATCH v2 3/6] x86/microcode: Display revisions only when update is successful
Date
Right now, microcode loading failures and successes print the same
message "Reloading completed". This is misleading to users.

Display the updated revision number only if an update was successful.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/lkml/874judpqqd.ffs@tglx/
Cc: LKML <linux-kernel@vger.kernel.org>
Cc: x86 <x86@kernel.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Alison Schofield <alison.schofield@intel.com>
Cc: Reinette Chatre <reinette.chatre@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
---
arch/x86/kernel/cpu/microcode/core.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kernel/cpu/microcode/core.c b/arch/x86/kernel/cpu/microcode/core.c
index e2cdf3e989e7..e60cf0f66bf5 100644
--- a/arch/x86/kernel/cpu/microcode/core.c
+++ b/arch/x86/kernel/cpu/microcode/core.c
@@ -500,11 +500,12 @@ static int microcode_reload_late(void)
store_cpu_caps(&info);

ret = stop_machine_cpuslocked(__reload_late, NULL, cpu_online_mask);
- if (ret == 0)
- microcode_check(&info);

- pr_info("Reload completed, microcode revision: 0x%x -> 0x%x\n",
- old, boot_cpu_data.microcode);
+ if (ret == 0) {
+ pr_info("Reload completed, microcode revision: 0x%x -> 0x%x\n",
+ old, boot_cpu_data.microcode);
+ microcode_check(&info);
+ }

return ret;
}
--
2.34.1
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