genirq: remove the is_affinity_mask_valid hook

This override was only used by the ia64 SGI SN2 platform, which is
gone now.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lkml.kernel.org/r/20190813072514.23299-29-hch@lst.de
Signed-off-by: Tony Luck <tony.luck@intel.com>

diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index da9addb8d655719cbd67a59e5d8535670e28f885..cfc4f088a0e76401a7d8dec6fcbf955108ce085d 100644 (file)
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -100,10 +100,6 @@ static int irq_affinity_hint_proc_show(struct seq_file *m, void *v)
        return 0;
 }
 
-#ifndef is_affinity_mask_valid
-#define is_affinity_mask_valid(val) 1
-#endif
-
 int no_irq_affinity;
 static int irq_affinity_proc_show(struct seq_file *m, void *v)
 {
@@ -136,11 +132,6 @@ static ssize_t write_irq_affinity(int type, struct file *file,
        if (err)
                goto free_cpumask;
 
-       if (!is_affinity_mask_valid(new_value)) {
-               err = -EINVAL;
-               goto free_cpumask;
-       }
-
        /*
         * Do not allow disabling IRQs completely - it's a too easy
         * way to make the system unusable accidentally :-) At least
@@ -232,11 +223,6 @@ static ssize_t default_affinity_write(struct file *file,
        if (err)
                goto out;
 
-       if (!is_affinity_mask_valid(new_value)) {
-               err = -EINVAL;
-               goto out;
-       }
-
        /*
         * Do not allow disabling IRQs completely - it's a too easy
         * way to make the system unusable accidentally :-) At least