From: Edward Cree <ecree@solarflare.com>
Date: Thu, 20 Aug 2020 11:47:19 +0100
Subject: sfc: fix build warnings on 32-bit
Patch-mainline: v5.9-rc2
Git-commit: 3e659a82c45076e354d20db4b0776e716c6e7fe3
References: jsc#SLE-16683
Truncation of DMA_BIT_MASK to 32-bit dma_addr_t is semantically safe,
but the compiler was warning because it was happening implicitly.
Insert explicit casts to suppress the warnings.
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Edward Cree <ecree@solarflare.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/sfc/ef100.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/net/ethernet/sfc/ef100.c
+++ b/drivers/net/ethernet/sfc/ef100.c
@@ -142,7 +142,7 @@ static int ef100_pci_parse_continue_entr
/* Temporarily map new BAR. */
rc = efx_init_io(efx, bar,
- DMA_BIT_MASK(ESF_GZ_TX_SEND_ADDR_WIDTH),
+ (dma_addr_t)DMA_BIT_MASK(ESF_GZ_TX_SEND_ADDR_WIDTH),
pci_resource_len(efx->pci_dev, bar));
if (rc) {
netif_err(efx, probe, efx->net_dev,
@@ -160,7 +160,7 @@ static int ef100_pci_parse_continue_entr
/* Put old BAR back. */
rc = efx_init_io(efx, previous_bar,
- DMA_BIT_MASK(ESF_GZ_TX_SEND_ADDR_WIDTH),
+ (dma_addr_t)DMA_BIT_MASK(ESF_GZ_TX_SEND_ADDR_WIDTH),
pci_resource_len(efx->pci_dev, previous_bar));
if (rc) {
netif_err(efx, probe, efx->net_dev,
@@ -334,7 +334,7 @@ static int ef100_pci_parse_xilinx_cap(st
/* Temporarily map BAR. */
rc = efx_init_io(efx, bar,
- DMA_BIT_MASK(ESF_GZ_TX_SEND_ADDR_WIDTH),
+ (dma_addr_t)DMA_BIT_MASK(ESF_GZ_TX_SEND_ADDR_WIDTH),
pci_resource_len(efx->pci_dev, bar));
if (rc) {
netif_err(efx, probe, efx->net_dev,
@@ -495,7 +495,7 @@ static int ef100_pci_probe(struct pci_de
/* Set up basic I/O (BAR mappings etc) */
rc = efx_init_io(efx, fcw.bar,
- DMA_BIT_MASK(ESF_GZ_TX_SEND_ADDR_WIDTH),
+ (dma_addr_t)DMA_BIT_MASK(ESF_GZ_TX_SEND_ADDR_WIDTH),
pci_resource_len(efx->pci_dev, fcw.bar));
if (rc)
goto fail;