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authorDaniel Vetter <daniel.vetter@ffwll.ch>2017-10-03 11:09:16 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2017-10-03 11:09:16 +0200
commit0d3c24e936feefeca854073ccb40613cd6eba9a9 (patch)
tree1f675397b924846740b0931b066ddce6f3d7eb3d /lib/cpumask.c
parent1af0838de60e723cb02253ecc9b555c30f8f6a6f (diff)
parentebec44a2456fbe5fe18aae88f6010f6878f0cb4a (diff)
Merge airlied/drm-next into drm-misc-next
Just catching up with upstream. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'lib/cpumask.c')
-rw-r--r--lib/cpumask.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/lib/cpumask.c b/lib/cpumask.c
index 4731a0895760..8b1a1bd77539 100644
--- a/lib/cpumask.c
+++ b/lib/cpumask.c
@@ -6,6 +6,22 @@
#include <linux/bootmem.h>
/**
+ * cpumask_next - get the next cpu in a cpumask
+ * @n: the cpu prior to the place to search (ie. return will be > @n)
+ * @srcp: the cpumask pointer
+ *
+ * Returns >= nr_cpu_ids if no further cpus set.
+ */
+unsigned int cpumask_next(int n, const struct cpumask *srcp)
+{
+ /* -1 is a legal arg here. */
+ if (n != -1)
+ cpumask_check(n);
+ return find_next_bit(cpumask_bits(srcp), nr_cpumask_bits, n + 1);
+}
+EXPORT_SYMBOL(cpumask_next);
+
+/**
* cpumask_next_and - get the next cpu in *src1p & *src2p
* @n: the cpu prior to the place to search (ie. return will be > @n)
* @src1p: the first cpumask pointer