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

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Date:	Thu, 18 Feb 2010 11:27:06 -0500
From:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:	linux-kernel@...r.kernel.org, fujita.tomonori@....ntt.co.jp,
	chrisw@...s-sol.org, iommu@...ts.linux-foundation.org,
	dwmw2@...radead.org, alex.williamson@...com
Cc:	jeremy@...p.org, Ian.Campbell@...citrix.com,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Subject: [PATCH 10/10] swiotlb: EXPORT_SYMBOL_GPL functions + variables that are defined in the header file.

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@...cle.com>
---
 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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