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Subject[PATCH 2.6.20-rc1] ib_verbs: Use explicit if-else statements to avoid errors with do-while macros
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At least on PPC, the "op ? op : dma" construct causes a compile failure
because the dma_* is a do{}while(0) macro.

This turns all of them into proper if/else to avoid this problem.

Signed-off-by: Ben Collins <bcollins@ubuntu.com>

diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index fd2353f..3c2e105 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1456,9 +1456,9 @@ struct ib_mr *ib_get_dma_mr(struct ib_pd
*/
static inline int ib_dma_mapping_error(struct ib_device *dev, u64 dma_addr)
{
- return dev->dma_ops ?
- dev->dma_ops->mapping_error(dev, dma_addr) :
- dma_mapping_error(dma_addr);
+ if (dev->dma_ops)
+ return dev->dma_ops->mapping_error(dev, dma_addr);
+ return dma_mapping_error(dma_addr);
}

/**
@@ -1472,9 +1472,9 @@ static inline u64 ib_dma_map_single(stru
void *cpu_addr, size_t size,
enum dma_data_direction direction)
{
- return dev->dma_ops ?
- dev->dma_ops->map_single(dev, cpu_addr, size, direction) :
- dma_map_single(dev->dma_device, cpu_addr, size, direction);
+ if (dev->dma_ops)
+ return dev->dma_ops->map_single(dev, cpu_addr, size, direction);
+ return dma_map_single(dev->dma_device, cpu_addr, size, direction);
}

/**
@@ -1488,8 +1488,9 @@ static inline void ib_dma_unmap_single(s
u64 addr, size_t size,
enum dma_data_direction direction)
{
- dev->dma_ops ?
- dev->dma_ops->unmap_single(dev, addr, size, direction) :
+ if (dev->dma_ops)
+ dev->dma_ops->unmap_single(dev, addr, size, direction);
+ else
dma_unmap_single(dev->dma_device, addr, size, direction);
}

@@ -1507,9 +1508,9 @@ static inline u64 ib_dma_map_page(struct
size_t size,
enum dma_data_direction direction)
{
- return dev->dma_ops ?
- dev->dma_ops->map_page(dev, page, offset, size, direction) :
- dma_map_page(dev->dma_device, page, offset, size, direction);
+ if (dev->dma_ops)
+ return dev->dma_ops->map_page(dev, page, offset, size, direction);
+ return dma_map_page(dev->dma_device, page, offset, size, direction);
}

/**
@@ -1523,8 +1524,9 @@ static inline void ib_dma_unmap_page(str
u64 addr, size_t size,
enum dma_data_direction direction)
{
- dev->dma_ops ?
- dev->dma_ops->unmap_page(dev, addr, size, direction) :
+ if (dev->dma_ops)
+ dev->dma_ops->unmap_page(dev, addr, size, direction);
+ else
dma_unmap_page(dev->dma_device, addr, size, direction);
}

@@ -1539,9 +1541,9 @@ static inline int ib_dma_map_sg(struct i
struct scatterlist *sg, int nents,
enum dma_data_direction direction)
{
- return dev->dma_ops ?
- dev->dma_ops->map_sg(dev, sg, nents, direction) :
- dma_map_sg(dev->dma_device, sg, nents, direction);
+ if (dev->dma_ops)
+ return dev->dma_ops->map_sg(dev, sg, nents, direction);
+ return dma_map_sg(dev->dma_device, sg, nents, direction);
}

/**
@@ -1555,8 +1557,9 @@ static inline void ib_dma_unmap_sg(struc
struct scatterlist *sg, int nents,
enum dma_data_direction direction)
{
- dev->dma_ops ?
- dev->dma_ops->unmap_sg(dev, sg, nents, direction) :
+ if (dev->dma_ops)
+ dev->dma_ops->unmap_sg(dev, sg, nents, direction);
+ else
dma_unmap_sg(dev->dma_device, sg, nents, direction);
}

@@ -1568,8 +1571,9 @@ static inline void ib_dma_unmap_sg(struc
static inline u64 ib_sg_dma_address(struct ib_device *dev,
struct scatterlist *sg)
{
- return dev->dma_ops ?
- dev->dma_ops->dma_address(dev, sg) : sg_dma_address(sg);
+ if (dev->dma_ops)
+ return dev->dma_ops->dma_address(dev, sg);
+ return sg_dma_address(sg);
}

/**
@@ -1580,8 +1584,9 @@ static inline u64 ib_sg_dma_address(stru
static inline unsigned int ib_sg_dma_len(struct ib_device *dev,
struct scatterlist *sg)
{
- return dev->dma_ops ?
- dev->dma_ops->dma_len(dev, sg) : sg_dma_len(sg);
+ if (dev->dma_ops)
+ return dev->dma_ops->dma_len(dev, sg);
+ return sg_dma_len(sg);
}

/**
@@ -1596,8 +1601,9 @@ static inline void ib_dma_sync_single_fo
size_t size,
enum dma_data_direction dir)
{
- dev->dma_ops ?
- dev->dma_ops->sync_single_for_cpu(dev, addr, size, dir) :
+ if (dev->dma_ops)
+ dev->dma_ops->sync_single_for_cpu(dev, addr, size, dir);
+ else
dma_sync_single_for_cpu(dev->dma_device, addr, size, dir);
}

@@ -1613,8 +1619,9 @@ static inline void ib_dma_sync_single_fo
size_t size,
enum dma_data_direction dir)
{
- dev->dma_ops ?
- dev->dma_ops->sync_single_for_device(dev, addr, size, dir) :
+ if (dev->dma_ops)
+ dev->dma_ops->sync_single_for_device(dev, addr, size, dir);
+ else
dma_sync_single_for_device(dev->dma_device, addr, size, dir);
}

@@ -1630,9 +1637,9 @@ static inline void *ib_dma_alloc_coheren
u64 *dma_handle,
gfp_t flag)
{
- return dev->dma_ops ?
- dev->dma_ops->alloc_coherent(dev, size, dma_handle, flag) :
- dma_alloc_coherent(dev->dma_device, size, dma_handle, flag);
+ if (dev->dma_ops)
+ return dev->dma_ops->alloc_coherent(dev, size, dma_handle, flag);
+ return dma_alloc_coherent(dev->dma_device, size, dma_handle, flag);
}

/**
@@ -1646,8 +1653,9 @@ static inline void ib_dma_free_coherent(
size_t size, void *cpu_addr,
u64 dma_handle)
{
- dev->dma_ops ?
- dev->dma_ops->free_coherent(dev, size, cpu_addr, dma_handle) :
+ if (dev->dma_ops)
+ dev->dma_ops->free_coherent(dev, size, cpu_addr, dma_handle);
+ else
dma_free_coherent(dev->dma_device, size, cpu_addr, dma_handle);
}

-
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