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authorThomas Gleixner <tglx@linutronix.de>2011-02-07 16:02:20 +0100
committerThomas Gleixner <tglx@linutronix.de>2011-02-19 12:58:07 +0100
commit3b8249e759c701c4a82f99d957be651a7657bf6f (patch)
treef758675da3bb37282eefd50e57456d09b208b452 /kernel/irq/proc.c
parent569bda8df11effa03e618729293c7961696abb10 (diff)
downloadlinux-stericsson-3b8249e759c701c4a82f99d957be651a7657bf6f.tar.gz
genirq: Do not copy affinity before set
While rumaging through arch code I found that there are a few workarounds which deal with the fact that the initial affinity setting from request_irq() copies the mask into irq_data->affinity before the chip code is called. In the normal path we unconditionally copy the mask when the chip code returns 0. Copy after the code is called and add a return code IRQ_SET_MASK_OK_NOCOPY for the chip functions, which prevents the copy. That way we see the real mask when the chip function decided to truncate it further as some arches do. IRQ_SET_MASK_OK is 0, which is the current behaviour. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/irq/proc.c')
-rw-r--r--kernel/irq/proc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index 6c8a2a9f8a7b..a46bd762db47 100644
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -89,7 +89,7 @@ static ssize_t irq_affinity_proc_write(struct file *file,
if (!cpumask_intersects(new_value, cpu_online_mask)) {
/* Special case for empty set - allow the architecture
code to set default SMP affinity. */
- err = irq_select_affinity_usr(irq) ? -EINVAL : count;
+ err = irq_select_affinity_usr(irq, new_value) ? -EINVAL : count;
} else {
irq_set_affinity(irq, new_value);
err = count;