diff options
| author | Jason Gunthorpe <jgg@nvidia.com> | 2023-04-14 10:58:29 -0300 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2023-04-16 11:08:07 +0300 |
| commit | 8d7c7c0eeb74281c846ef9231ce20536c79a99b4 (patch) | |
| tree | b80b6fee2ff23604fd054ea29593ec8b6ece33c7 /drivers/infiniband/sw/rxe/rxe_verbs.c | |
| parent | b2b1ddc457458fecd1c6f385baa9fbda5f0c63ad (diff) | |
| download | linux-stable-8d7c7c0eeb74281c846ef9231ce20536c79a99b4.tar.gz | |
RDMA: Add ib_virt_dma_to_page()
Make it clearer what is going on by adding a function to go back from the
"virtual" dma_addr to a kva and another to a struct page. This is used in the
ib_uses_virt_dma() style drivers (siw, rxe, hfi, qib).
Call them instead of a naked casting and virt_to_page() when working with dma_addr
values encoded by the various ib_map functions.
This also fixes the virt_to_page() casting problem Linus Walleij has been
chasing.
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/0-v2-05ea785520ed+10-ib_virt_page_jgg@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Diffstat (limited to 'drivers/infiniband/sw/rxe/rxe_verbs.c')
| -rw-r--r-- | drivers/infiniband/sw/rxe/rxe_verbs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.c b/drivers/infiniband/sw/rxe/rxe_verbs.c index 4e2db7c2e4ed..12819153bda7 100644 --- a/drivers/infiniband/sw/rxe/rxe_verbs.c +++ b/drivers/infiniband/sw/rxe/rxe_verbs.c @@ -760,7 +760,7 @@ static void copy_inline_data_to_wqe(struct rxe_send_wqe *wqe, int i; for (i = 0; i < ibwr->num_sge; i++, sge++) { - memcpy(p, (void *)(uintptr_t)sge->addr, sge->length); + memcpy(p, ib_virt_dma_to_page(sge->addr), sge->length); p += sge->length; } } |