UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

tc35815: Fix an usage of streaming DMA API. 

The tc35815 driver lacks a call to pci_dma_sync_single_for_device() on
receiving.  Recent fix of MIPS dma_sync_single_for_cpu() reveal this
bug.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Atsushi Nemoto 2007-03-14 01:02:20 +09:00 committed by Jeff Garzik
parent 1e56a4b402
commit 793bc0afbd
1 changed files with 8 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/net/tc35815.c
View File

@ -58,12 +58,13 @@
* 1.34 Fix netpoll locking. "BH rule" for NAPI is not enough with * 1.34 Fix netpoll locking. "BH rule" for NAPI is not enough with
* netpoll, hard_start_xmit might be called from irq context. * netpoll, hard_start_xmit might be called from irq context.
* PM support. * PM support.
* 1.35 Fix an usage of streaming DMA API.
*/ */
#ifdef TC35815_NAPI #ifdef TC35815_NAPI
#define DRV_VERSION "1.34-NAPI" #define DRV_VERSION "1.35-NAPI"
#else #else
#define DRV_VERSION "1.34" #define DRV_VERSION "1.35"
#endif #endif
static const char *version = "tc35815.c:v" DRV_VERSION "\n"; static const char *version = "tc35815.c:v" DRV_VERSION "\n";
#define MODNAME "tc35815" #define MODNAME "tc35815"
@ -1550,6 +1551,11 @@ tc35815_rx(struct net_device *dev)
PCI_DMA_FROMDEVICE); PCI_DMA_FROMDEVICE);
#endif #endif
memcpy(data + offset, rxbuf, len); memcpy(data + offset, rxbuf, len);
#ifdef TC35815_DMA_SYNC_ONDEMAND
pci_dma_sync_single_for_device(lp->pci_dev,
dma, len,
PCI_DMA_FROMDEVICE);
#endif
offset += len; offset += len;
cur_bd++; cur_bd++;
} }