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Subject[PATCH 2/2] iommu-common: rename iommu_pool_hash to iommu_hash_common
Date
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>
---
lib/iommu-common.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/iommu-common.c b/lib/iommu-common.c
index a9a53f5..df30632 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)
return;
do_once = true;
for_each_possible_cpu(i)
- 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;
--
1.7.1


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