Patch "genirq: Use cpumask_available() for check of cpumask variable" has been added to the 4.9-stable tree

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 4.9-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-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Matthias Kaehlcke <[email protected]>
Date: Wed, 12 Apr 2017 11:20:30 -0700
Subject: genirq: Use cpumask_available() for check of cpumask variable

From: Matthias Kaehlcke <[email protected]>

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]

---
 kernel/irq/manage.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

@@ -850,7 +850,7 @@ 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 [email protected] are

queue-4.9/dm-ioctl-remove-double-parentheses.patch queue-4.9/genirq-use-cpumask_available-for-check-of-cpumask-variable.patch queue-4.9/fs-compat-remove-warning-from-compatible_ioctl.patch queue-4.9/selinux-remove-unnecessary-check-of-array-base-in-selinux_set_mapping.patch queue-4.9/pci-make-pci_rom_address_mask-a-32-bit-constant.patch queue-4.9/cpumask-add-helper-cpumask_available.patch