linux-kernel - [PATCH 5/5] swiotlb: EXPORT_SYMBOL_GPL functions + variables that are defined in the header file.

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Message-Id: <1269011062-25915-6-git-send-email-konrad.wilk@oracle.com>
Date:	Fri, 19 Mar 2010 11:04:22 -0400
From:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:	fujita.tomonori@....ntt.co.jp, linux-kernel@...r.kernel.org,
	iommu@...ts.linux-foundation.org, albert_herranz@...oo.es
Cc:	chrisw@...s-sol.org, jeremy@...p.org, Ian.Campbell@...citrix.com,
	dwmw2@...radead.org, alex.williamson@...com,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Subject: [PATCH 5/5] 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 |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index b3eef1c..c6bfa5d 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -57,19 +57,24 @@ int swiotlb_force;
  * API.
  */
 char *swiotlb_bk_start, *swiotlb_bk_end;
+EXPORT_SYMBOL_GPL(swiotlb_bk_start);
+EXPORT_SYMBOL_GPL(swiotlb_bk_end);
 
 /*
  * The number of IO TLB blocks (in groups of 64) betweeen swiotlb_bk_start and
  * swiotlb_bk_end.  This is command line adjustable via setup_io_tlb_npages.
  */
 unsigned long swiotlb_bk_nslabs;
+EXPORT_SYMBOL_GPL(swiotlb_bk_nslabs);
 
 /*
  * When the IOMMU overflows we return a fallback buffer. This sets the size.
  */
 unsigned long swiotlb_bk_overflow = 32*1024;
+EXPORT_SYMBOL_GPL(swiotlb_bk_overflow);
 
 void *swiotlb_bk_overflow_buffer;
+EXPORT_SYMBOL_GPL(swiotlb_bk_overflow_buffer);
 
 /*
  * This is a free list describing the number of free entries available from
@@ -312,6 +317,7 @@ int is_swiotlb_buffer(phys_addr_t paddr)
 	return paddr >= virt_to_phys(swiotlb_bk_start) &&
 		paddr < virt_to_phys(swiotlb_bk_end);
 }
+EXPORT_SYMBOL_GPL(is_swiotlb_buffer);
 
 /*
  * Bounce: copy the swiotlb buffer back to the original dma location
@@ -353,6 +359,7 @@ 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.
@@ -459,6 +466,7 @@ found:
 
 	return dma_addr;
 }
+EXPORT_SYMBOL_GPL(swiotlb_bk_map_single);
 
 /*
  * dma_addr is the kernel virtual address of the bounce buffer to unmap.
@@ -504,6 +512,7 @@ swiotlb_bk_unmap_single(struct device *hwdev, char *dma_addr, size_t size,
 	}
 	spin_unlock_irqrestore(&swiotlb_bk_lock, flags);
 }
+EXPORT_SYMBOL_GPL(swiotlb_bk_unmap_single);
 
 void
 swiotlb_bk_sync_single(struct device *hwdev, char *dma_addr, size_t size,
@@ -531,6 +540,7 @@ swiotlb_bk_sync_single(struct device *hwdev, char *dma_addr, size_t size,
 		BUG();
 	}
 }
+EXPORT_SYMBOL_GPL(swiotlb_bk_sync_single);
 
 void *
 swiotlb_alloc_coherent(struct device *hwdev, size_t size,
@@ -622,6 +632,7 @@ 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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