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Staging: rt28xx: Make PCI_{MAP,UNMAP}_SINGLE type-safe 

To avoid recurrence of bugs such as <http://bugs.debian.org/575726>,
change the type of the first parameter to linux_pci_{map,unmap}_single()
from void * to struct rt_rtmp_adapter *.  Also do not define the macros
PCI_{MAP,UNMAP}_SINGLE() when building the rt2870sta driver; they are
not used and if they were that would be a bug.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>,
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Ben Hutchings 2010-03-29 01:24:45 +01:00 committed by Greg Kroah-Hartman
parent 5d6892b3c6
commit 9fd453c981
2 changed files with 9 additions and 17 deletions
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14
drivers/staging/rt2860/rt_linux.h
View File

@ -455,10 +455,11 @@ void hex_dump(char *str, unsigned char *pSrcBufVA, unsigned int SrcBufLen);
* Device DMA Access related definitions and data structures.
**********************************************************************************/
#ifdef RTMP_MAC_PCI
dma_addr_t linux_pci_map_single(void *handle, void *ptr, size_t size,
int sd_idx, int direction);
void linux_pci_unmap_single(void *handle, dma_addr_t dma_addr, size_t size,
int direction);
struct rt_rtmp_adapter;
dma_addr_t linux_pci_map_single(struct rt_rtmp_adapter *pAd, void *ptr,
size_t size, int sd_idx, int direction);
void linux_pci_unmap_single(struct rt_rtmp_adapter *pAd, dma_addr_t dma_addr,
size_t size, int direction);
#define PCI_MAP_SINGLE(_handle, _ptr, _size, _sd_idx, _dir) \
linux_pci_map_single(_handle, _ptr, _size, _sd_idx, _dir)
@ -475,11 +476,6 @@ void linux_pci_unmap_single(void *handle, dma_addr_t dma_addr, size_t size,
#define DEV_ALLOC_SKB(_length) \
dev_alloc_skb(_length)
#endif /* RTMP_MAC_PCI // */
#ifdef RTMP_MAC_USB
#define PCI_MAP_SINGLE(_handle, _ptr, _size, _dir) (unsigned long)0
#define PCI_UNMAP_SINGLE(_handle, _ptr, _size, _dir)
#endif /* RTMP_MAC_USB // */
/*
* unsigned long

12
drivers/staging/rt2860/rt_pci_rbus.c
View File

@ -790,10 +790,9 @@ IRQ_HANDLE_TYPE rt2860_interrupt(int irq, void *dev_instance)
* invaild or writeback cache
* and convert virtual address to physical address
*/
dma_addr_t linux_pci_map_single(void *handle, void *ptr, size_t size,
int sd_idx, int direction)
dma_addr_t linux_pci_map_single(struct rt_rtmp_adapter *pAd, void *ptr,
size_t size, int sd_idx, int direction)
{
struct rt_rtmp_adapter *pAd;
struct os_cookie *pObj;
/*
@ -812,7 +811,6 @@ dma_addr_t linux_pci_map_single(void *handle, void *ptr, size_t size,
sd_idx = -1
*/
pAd = (struct rt_rtmp_adapter *)handle;
pObj = (struct os_cookie *)pAd->OS_Cookie;
if (sd_idx == 1) {
@ -826,13 +824,11 @@ dma_addr_t linux_pci_map_single(void *handle, void *ptr, size_t size,
}
void linux_pci_unmap_single(void *handle, dma_addr_t dma_addr, size_t size,
int direction)
void linux_pci_unmap_single(struct rt_rtmp_adapter *pAd, dma_addr_t dma_addr,
size_t size, int direction)
{
struct rt_rtmp_adapter *pAd;
struct os_cookie *pObj;
pAd = (struct rt_rtmp_adapter *)handle;
pObj = (struct os_cookie *)pAd->OS_Cookie;
pci_unmap_single(pObj->pci_dev, dma_addr, size, direction);