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%3Ba=su...
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@vger.kernel.org know about it.
From d170fe7dd992b313d4851ae5ab77ee7a51ed8c72 Mon Sep 17 00:00:00 2001
From: Matthias Kaehlcke mka@chromium.org Date: Wed, 12 Apr 2017 11:20:30 -0700 Subject: genirq: Use cpumask_available() for check of cpumask variable
From: Matthias Kaehlcke mka@chromium.org
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@chromium.org Cc: Grant Grundler grundler@chromium.org Cc: Rusty Russell rusty@rustcorp.com.au Cc: Greg Hackmann ghackmann@google.com Cc: Michael Davidson md@google.com Cc: Andrew Morton akpm@linux-foundation.org Link: http://lkml.kernel.org/r/20170412182030.83657-2-mka@chromium.org Signed-off-by: Thomas Gleixner tglx@linutronix.de Cc: Nathan Chancellor natechancellor@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- 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@chromium.org 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