[PATCH 10/10] swiotlb: EXPORT_SYMBOL_GPL functions + variables that are defined in the header file.

From: Konrad Rzeszutek Wilk
Date: Thu Feb 18 2010 - 11:52:52 EST


Make the functions and variables that are now declared in the swiotlb.h
header file visible by the linker.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
---
lib/swiotlb.c | 12 ++++++++++++
1 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 674d025..ddf4a2d 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -56,19 +56,24 @@ int swiotlb_force;
* API.
*/
char *io_tlb_start, *io_tlb_end;
+EXPORT_SYMBOL_GPL(io_tlb_start);
+EXPORT_SYMBOL_GPL(io_tlb_end);

/*
* The number of IO TLB blocks (in groups of 64) betweeen io_tlb_start and
* io_tlb_end. This is command line adjustable via setup_io_tlb_npages.
*/
unsigned long io_tlb_nslabs;
+EXPORT_SYMBOL_GPL(io_tlb_nslabs);

/*
* When the IOMMU overflows we return a fallback buffer. This sets the size.
*/
unsigned long io_tlb_overflow = 32*1024;
+EXPORT_SYMBOL_GPL(io_tlb_overflow);

void *io_tlb_overflow_buffer;
+EXPORT_SYMBOL_GPL(io_tlb_overflow_buffer);

/*
* This is a free list describing the number of free entries available from
@@ -204,6 +209,7 @@ swiotlb_init_early(size_t default_size, int verbose)
if (verbose)
swiotlb_print_info();
}
+EXPORT_SYMBOL_GPL(swiotlb_init_early);

void __init
swiotlb_init(int verbose)
@@ -337,6 +343,7 @@ int is_swiotlb_buffer(phys_addr_t paddr)
return paddr >= virt_to_phys(io_tlb_start) &&
paddr < virt_to_phys(io_tlb_end);
}
+EXPORT_SYMBOL_GPL(is_swiotlb_buffer);

/*
* Bounce: copy the swiotlb buffer back to the original dma location
@@ -378,6 +385,7 @@ void swiotlb_bounce(phys_addr_t phys, char *dma_addr, size_t size,
memcpy(phys_to_virt(phys), dma_addr, size);
}
}
+EXPORT_SYMBOL_GPL(swiotlb_bounce);

/*
* Allocates bounce buffer and returns its kernel virtual address.
@@ -484,6 +492,7 @@ found:

return dma_addr;
}
+EXPORT_SYMBOL_GPL(do_map_single);

/*
* dma_addr is the kernel virtual address of the bounce buffer to unmap.
@@ -528,6 +537,7 @@ do_unmap_single(struct device *hwdev, char *dma_addr, size_t size, int dir)
}
spin_unlock_irqrestore(&io_tlb_lock, flags);
}
+EXPORT_SYMBOL_GPL(do_unmap_single);

void
do_sync_single(struct device *hwdev, char *dma_addr, size_t size,
@@ -555,6 +565,7 @@ do_sync_single(struct device *hwdev, char *dma_addr, size_t size,
BUG();
}
}
+EXPORT_SYMBOL_GPL(do_sync_single);

void *
swiotlb_alloc_coherent(struct device *hwdev, size_t size,
@@ -646,6 +657,7 @@ swiotlb_full(struct device *dev, size_t size, int dir, int do_panic)
if (dir == DMA_TO_DEVICE)
panic("DMA: Random memory could be DMA read\n");
}
+EXPORT_SYMBOL_GPL(swiotlb_full);

/*
* Map a single buffer of the indicated size for DMA in streaming mode. The
--
1.6.2.5

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