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path: root/drivers/net/sfc
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Diffstat (limited to 'drivers/net/sfc')
-rw-r--r--drivers/net/sfc/bitfield.h3
-rw-r--r--drivers/net/sfc/falcon.c13
-rw-r--r--drivers/net/sfc/net_driver.h2
3 files changed, 3 insertions, 15 deletions
diff --git a/drivers/net/sfc/bitfield.h b/drivers/net/sfc/bitfield.h
index c98a591bd80..2c79d27404e 100644
--- a/drivers/net/sfc/bitfield.h
+++ b/drivers/net/sfc/bitfield.h
@@ -501,8 +501,5 @@ typedef union efx_oword {
#define DMA_ADDR_T_WIDTH (8 * sizeof(dma_addr_t))
#define EFX_DMA_TYPE_WIDTH(width) \
(((width) < DMA_ADDR_T_WIDTH) ? (width) : DMA_ADDR_T_WIDTH)
-#define EFX_DMA_MAX_MASK ((DMA_ADDR_T_WIDTH == 64) ? \
- ~((u64) 0) : ~((u32) 0))
-#define EFX_DMA_MASK(mask) ((mask) & EFX_DMA_MAX_MASK)
#endif /* EFX_BITFIELD_H */
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index e02f1d1728a..475b596383c 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -116,17 +116,8 @@ MODULE_PARM_DESC(rx_xon_thresh_bytes, "RX fifo XON threshold");
**************************************************************************
*/
-/* DMA address mask (up to 46-bit, avoiding compiler warnings)
- *
- * Note that it is possible to have a platform with 64-bit longs and
- * 32-bit DMA addresses, or vice versa. EFX_DMA_MASK takes care of the
- * platform DMA mask.
- */
-#if BITS_PER_LONG == 64
-#define FALCON_DMA_MASK EFX_DMA_MASK(0x00003fffffffffffUL)
-#else
-#define FALCON_DMA_MASK EFX_DMA_MASK(0x00003fffffffffffULL)
-#endif
+/* DMA address mask */
+#define FALCON_DMA_MASK DMA_BIT_MASK(46)
/* TX DMA length mask (13-bit) */
#define FALCON_TX_DMA_MASK (4096 - 1)
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index a84f9756ca7..77418aed9a3 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -800,7 +800,7 @@ struct efx_nic_type {
unsigned int txd_ring_mask;
unsigned int rxd_ring_mask;
unsigned int evq_size;
- dma_addr_t max_dma_mask;
+ u64 max_dma_mask;
unsigned int tx_dma_mask;
unsigned bug5391_mask;