linux-kernel - [PATCH] arch-x86-pci-swiotlb-cleanup-patch

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Message-Id: <200908131718.04623.mitov@issp.bas.bg>
Date:	Thu, 13 Aug 2009 17:18:04 +0300
From:	Marin Mitov <mitov@...p.bas.bg>
To:	linux-kernel@...r.kernel.org
Cc:	linux-pci@...r.kernel.org, Jesse Barnes <jbarnes@...tuousgeek.org>
Subject: [PATCH] arch-x86-pci-swiotlb-cleanup-patch

Hi all,

This is a simple cleanup patch for arch/x86/kernel/pci-swiotlb.c file.

Deleted functions are already in lib/swiotlb.c, so no need to be duplicated.

The patch is against linux-2.6.31-rc5, compile/run tested on x86_64.

Best regards,

Marin Mitov

Signed-off-by: Marin Mitov <mitov@...p.bas.bg>

=====================================================
--- a/arch/x86/kernel/pci-swiotlb.c	2009-08-13 16:05:28.000000000 +0300
+++ b/arch/x86/kernel/pci-swiotlb.c	2009-08-13 16:13:09.000000000 +0300
@@ -13,31 +13,6 @@
 
 int swiotlb __read_mostly;
 
-void * __init swiotlb_alloc_boot(size_t size, unsigned long nslabs)
-{
-	return alloc_bootmem_low_pages(size);
-}
-
-void *swiotlb_alloc(unsigned order, unsigned long nslabs)
-{
-	return (void *)__get_free_pages(GFP_DMA | __GFP_NOWARN, order);
-}
-
-dma_addr_t swiotlb_phys_to_bus(struct device *hwdev, phys_addr_t paddr)
-{
-	return paddr;
-}
-
-phys_addr_t swiotlb_bus_to_phys(struct device *hwdev, dma_addr_t baddr)
-{
-	return baddr;
-}
-
-int __weak swiotlb_arch_range_needs_mapping(phys_addr_t paddr, size_t size)
-{
-	return 0;
-}
-
 static void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
 					dma_addr_t *dma_handle, gfp_t flags)
 {
--
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