[Linux-stable-mirror] [PATCH 4.4] x86/microcode/intel: Fix BDW late-loading revision check
The backport of commit b94b73733171 ("x86/microcode/intel: Extend BDW late-loading with a revision check") to 4.4-stable deleted a "return true" statement. This bug is not present upstream or other stable branches.
Signed-off-by: Ben Hutchings ben.hutchings@codethink.co.uk --- arch/x86/kernel/cpu/microcode/intel.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/x86/kernel/cpu/microcode/intel.c b/arch/x86/kernel/cpu/microcode/intel.c index b428a8174be1..ee011bd7934d 100644 --- a/arch/x86/kernel/cpu/microcode/intel.c +++ b/arch/x86/kernel/cpu/microcode/intel.c @@ -1005,6 +1005,7 @@ static bool is_blacklisted(unsigned int cpu) c->microcode < 0x0b000021) { pr_err_once("Erratum BDF90: late loading with revision < 0x0b000021 (0x%x) disabled.\n", c->microcode); pr_err_once("Please consider either early loading through initrd/built-in or a potential BIOS update.\n"); + return true; }
return false;
On Wed, Jan 24, 2018 at 02:31:19AM +0000, Ben Hutchings wrote:
The backport of commit b94b73733171 ("x86/microcode/intel: Extend BDW late-loading with a revision check") to 4.4-stable deleted a "return true" statement. This bug is not present upstream or other stable branches.
Signed-off-by: Ben Hutchings ben.hutchings@codethink.co.uk
arch/x86/kernel/cpu/microcode/intel.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/x86/kernel/cpu/microcode/intel.c b/arch/x86/kernel/cpu/microcode/intel.c index b428a8174be1..ee011bd7934d 100644 --- a/arch/x86/kernel/cpu/microcode/intel.c +++ b/arch/x86/kernel/cpu/microcode/intel.c @@ -1005,6 +1005,7 @@ static bool is_blacklisted(unsigned int cpu) c->microcode < 0x0b000021) { pr_err_once("Erratum BDF90: late loading with revision < 0x0b000021 (0x%x) disabled.\n", c->microcode); pr_err_once("Please consider either early loading through initrd/built-in or a potential BIOS update.\n");
return true;
That is really odd. Thanks for catching this, now queued up.
greg k-h
This is a note to let you know that I've just added the patch titled
x86/microcode/intel: Fix BDW late-loading revision check
to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: x86-microcode-intel-fix-bdw-late-loading-revision-check.patch and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From ben.hutchings@codethink.co.uk Wed Jan 24 10:19:07 2018
From: Ben Hutchings ben.hutchings@codethink.co.uk Date: Wed, 24 Jan 2018 02:31:19 +0000 Subject: x86/microcode/intel: Fix BDW late-loading revision check To: Greg Kroah-Hartman gregkh@linuxfoundation.org Cc: stable@vger.kernel.org Message-ID: 20180124023119.kaendz4jiuejowxr@xylophone.i.decadent.org.uk Content-Disposition: inline
From: Ben Hutchings ben.hutchings@codethink.co.uk
The backport of commit b94b73733171 ("x86/microcode/intel: Extend BDW late-loading with a revision check") to 4.4-stable deleted a "return true" statement. This bug is not present upstream or other stable branches.
Signed-off-by: Ben Hutchings ben.hutchings@codethink.co.uk Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/kernel/cpu/microcode/intel.c | 1 + 1 file changed, 1 insertion(+)
--- a/arch/x86/kernel/cpu/microcode/intel.c +++ b/arch/x86/kernel/cpu/microcode/intel.c @@ -1005,6 +1005,7 @@ static bool is_blacklisted(unsigned int c->microcode < 0x0b000021) { pr_err_once("Erratum BDF90: late loading with revision < 0x0b000021 (0x%x) disabled.\n", c->microcode); pr_err_once("Please consider either early loading through initrd/built-in or a potential BIOS update.\n"); + return true; }
return false;
Patches currently in stable-queue which might be from ben.hutchings@codethink.co.uk are
queue-4.4/x86-microcode-intel-fix-bdw-late-loading-revision-check.patch
linux-stable-mirror@lists.linaro.org
-
Ben Hutchings -
Greg Kroah-Hartman -
gregkh＠linuxfoundation.org