diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2020-11-11 15:23:46 -0700 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2020-11-16 22:38:20 +0530 |
| commit | 8326be9f1c0bb498baf134878a8deb8a952e0135 (patch) | |
| tree | f3c50b5ee70d215ad2e77a537c2e78b5281b294d /drivers/dma/idxd/submit.c | |
| parent | 29a25b9246f7f24203d30d59424cbe22bd905dfc (diff) | |
dmaengine: idxd: fix mapping of portal size
Portal size is 4k. Current code is mapping all 4 portals in a single chunk.
Restrict the mapped portal size to a single portal to ensure that submission
only goes to the intended portal address.
Fixes: c52ca478233c ("dmaengine: idxd: add configuration component of driver")
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/160513342642.510187.16450549281618747065.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/idxd/submit.c')
| -rw-r--r-- | drivers/dma/idxd/submit.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma/idxd/submit.c b/drivers/dma/idxd/submit.c index 156a1ee233aa..417048e3c42a 100644 --- a/drivers/dma/idxd/submit.c +++ b/drivers/dma/idxd/submit.c @@ -74,7 +74,7 @@ int idxd_submit_desc(struct idxd_wq *wq, struct idxd_desc *desc) if (idxd->state != IDXD_DEV_ENABLED) return -EIO; - portal = wq->dportal + idxd_get_wq_portal_offset(IDXD_PORTAL_UNLIMITED); + portal = wq->dportal; /* * The wmb() flushes writes to coherent DMA data before possibly * triggering a DMA read. The wmb() is necessary even on UP because |