4.9-stable review patch. If anyone has any objections, please let me know.
------------------ From: Matthias Kaehlcke <m...@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 <m...@chromium.org> Cc: Grant Grundler <grund...@chromium.org> Cc: Rusty Russell <ru...@rustcorp.com.au> Cc: Greg Hackmann <ghackm...@google.com> Cc: Michael Davidson <m...@google.com> Cc: Andrew Morton <a...@linux-foundation.org> Link: http://lkml.kernel.org/r/20170412182030.83657-2-...@chromium.org Signed-off-by: Thomas Gleixner <t...@linutronix.de> Cc: Nathan Chancellor <natechancel...@gmail.com> Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- kernel/irq/manage.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -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;
