This is a note to let you know that I've just added the patch titled
genirq: Use cpumask_available() for check of cpumask variable
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
genirq-use-cpumask_available-for-check-of-cpumask-variable.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@xxxxxxxxxxxxxxx> know about it.
>From d170fe7dd992b313d4851ae5ab77ee7a51ed8c72 Mon Sep 17 00:00:00 2001
From: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
Date: Wed, 12 Apr 2017 11:20:30 -0700
Subject: genirq: Use cpumask_available() for check of cpumask variable
From: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
commit d170fe7dd992b313d4851ae5ab77ee7a51ed8c72 upstream.
This fixes the following clang warning when CONFIG_CPUMASK_OFFSTACK=n:
kernel/irq/manage.c:839:28: error: address of array
'desc->irq_common_data.affinity' will always evaluate to 'true'
[-Werror,-Wpointer-bool-conversion]
Signed-off-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
Cc: Grant Grundler <grundler@xxxxxxxxxxxx>
Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Cc: Greg Hackmann <ghackmann@xxxxxxxxxx>
Cc: Michael Davidson <md@xxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/20170412182030.83657-2-mka@xxxxxxxxxxxx
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Nathan Chancellor <natechancellor@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
kernel/irq/manage.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -836,7 +836,7 @@ irq_thread_check_affinity(struct irq_des
* This code is triggered unconditionally. Check the affinity
* mask pointer. For CPU_MASK_OFFSTACK=n this is optimized out.
*/
- if (desc->irq_common_data.affinity)
+ if (cpumask_available(desc->irq_common_data.affinity))
cpumask_copy(mask, desc->irq_common_data.affinity);
else
valid = false;
Patches currently in stable-queue which might be from mka@xxxxxxxxxxxx are
queue-4.4/dm-ioctl-remove-double-parentheses.patch
queue-4.4/genirq-use-cpumask_available-for-check-of-cpumask-variable.patch
queue-4.4/fs-compat-remove-warning-from-compatible_ioctl.patch
queue-4.4/selinux-remove-unnecessary-check-of-array-base-in-selinux_set_mapping.patch
queue-4.4/pci-make-pci_rom_address_mask-a-32-bit-constant.patch
queue-4.4/cpumask-add-helper-cpumask_available.patch