[PATCH 5.15 524/731] RDMA/siw: Fix pointer cast warning

Greg Kroah-Hartman
2022-12-28T15:36:42Z

From: Arnd Bergmann <arnd@arndb.de>

[ Upstream commit 5244ca88671a1981ceec09c5c8809f003e6a62aa ]

The previous build fix left a remaining issue in configurations with
64-bit dma_addr_t on 32-bit architectures:

drivers/infiniband/sw/siw/siw_qp_tx.c: In function 'siw_get_pblpage':
drivers/infiniband/sw/siw/siw_qp_tx.c:32:37: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
32 | return virt_to_page((void *)paddr);
| ^

Use the same double cast here that the driver uses elsewhere to convert
between dma_addr_t and void*.

Fixes: 0d1b756acf60 ("RDMA/siw: Pass a pointer to virt_to_page()")
Link: https://lore.kernel.org/r/20221215170347.2612403-1-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Bernard Metzler <bmt@zurich.ibm.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/sw/siw/siw_qp_tx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/sw/siw/siw_qp_tx.c b/drivers/infiniband/sw/siw/siw_qp_tx.c
index 7d47b521070b..05052b49107f 100644
--- a/drivers/infiniband/sw/siw/siw_qp_tx.c
+++ b/drivers/infiniband/sw/siw/siw_qp_tx.c
@@ -29,7 +29,7 @@ static struct page *siw_get_pblpage(struct siw_mem *mem, u64 addr, int *idx)
dma_addr_t paddr = siw_pbl_get_buffer(pbl, offset, NULL, idx);

if (paddr)
- return virt_to_page((void *)paddr);
+ return virt_to_page((void *)(uintptr_t)paddr);

return NULL;
}
--
2.35.1