diff options
authorSowmini Varadhan <sowmini.varadhan@oracle.com>2015-04-19 13:13:31 -0400
committerDavid S. Miller <davem@davemloft.net>2015-04-20 14:09:55 -0400
commit7b3372d4c2bced80598771aab8fea87c40ebb52a (patch)
parentb0cc836d306c12462a60e72aae8f6d2318f10817 (diff)
iommu-common: rename iommu_pool_hash to iommu_hash_common
When CONFIG_DEBUG_FORCE_WEAK_PER_CPU is set, the DEFINE_PER_CPU_SECTION macro will define an extern __pcpu_unique_##name variable that could conflict with the same definition in powerpc at this time. Avoid that conflict by renaming iommu_pool_hash in iommu-common.c Thanks to Guenter Roeck for catching this, and helping to test the fix. Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Tested-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/iommu-common.c b/lib/iommu-common.c
index a9a53f566237..df30632f0bef 100644
--- a/lib/iommu-common.c
+++ b/lib/iommu-common.c
@@ -17,7 +17,7 @@
static unsigned long iommu_large_alloc = 15;
-static DEFINE_PER_CPU(unsigned int, iommu_pool_hash);
+static DEFINE_PER_CPU(unsigned int, iommu_hash_common);
static inline bool need_flush(struct iommu_map_table *iommu)
@@ -44,7 +44,7 @@ static void setup_iommu_pool_hash(void)
do_once = true;
- per_cpu(iommu_pool_hash, i) = hash_32(i, IOMMU_POOL_HASHBITS);
+ per_cpu(iommu_hash_common, i) = hash_32(i, IOMMU_POOL_HASHBITS);
@@ -106,7 +106,7 @@ unsigned long iommu_tbl_range_alloc(struct device *dev,
unsigned long mask,
unsigned int align_order)
- unsigned int pool_hash = __this_cpu_read(iommu_pool_hash);
+ unsigned int pool_hash = __this_cpu_read(iommu_hash_common);
unsigned long n, end, start, limit, boundary_size;
struct iommu_pool *pool;
int pass = 0;

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