The patch titled
Subject: kernel/irq/manage.c: use cpumask_available() for check of cpumask variable
has been added to the -mm tree. Its filename is
kernel-irq-use-cpumask_available-for-check-of-cpumask-variable.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/kernel-irq-use-cpumask_available-for-check-of-cpumask-variable.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/kernel-irq-use-cpumask_available-for-check-of-cpumask-variable.patch
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------------------------------------------------------
From: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
Subject: kernel/irq/manage.c: use cpumask_available() for check of cpumask variable
This fixes the following clang warning when CONFIG_CPUMASK_OFFSTACK=y:
kernel/irq/manage.c:839:28: error: address of array
'desc->irq_common_data.affinity' will always evaluate to 'true'
[-Werror,-Wpointer-bool-conversion]
Link: http://lkml.kernel.org/r/20170412182030.83657-2-mka@xxxxxxxxxxxx
Signed-off-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Cc: Grant Grundler <grundler@xxxxxxxxxxxx>
Cc: Greg Hackmann <ghackmann@xxxxxxxxxx>
Cc: Michael Davidson <md@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/irq/manage.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN kernel/irq/manage.c~kernel-irq-use-cpumask_available-for-check-of-cpumask-variable kernel/irq/manage.c
--- a/kernel/irq/manage.c~kernel-irq-use-cpumask_available-for-check-of-cpumask-variable
+++ a/kernel/irq/manage.c
@@ -852,7 +852,7 @@ 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 -mm which might be from mka@xxxxxxxxxxxx are
jiffiesh-declare-jiffies-and-jiffies_64-with-____cacheline_aligned_in_smp.patch
cpumask-add-helper-cpumask_available.patch
kernel-irq-use-cpumask_available-for-check-of-cpumask-variable.patch
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