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| author | Paul Louvel <paul.louvel@bootlin.com> | 2026-05-07 17:41:47 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2026-05-15 13:08:47 +0300 |
| commit | e17ff3d6ff907dc8406261e8fd3e1fc8a908f0f6 (patch) | |
| tree | 9871cbced53a77fa333831749816187beb12a6a8 /scripts/checkstack.pl | |
| parent | 930d9d36ea618a775985446a125aedeb401db522 (diff) | |
| download | linux-e17ff3d6ff907dc8406261e8fd3e1fc8a908f0f6.tar.xz | |
crypto: talitos - use dma_sync_single_for_cpu() before reading descriptor header
In order to know if a descriptor has been processed by the device,
the driver polls the FIFO to see if DESC_HDR_DONE is set on a descriptor
header to confirm completion.
The current code does not make sure that the CPU gets up to date data
before reading the descriptor.
Fix this by calling dma_sync_single_for_cpu() before reading memory
written by the device.
Cc: stable@vger.kernel.org
Fixes: 58cdbc6d2263 ("crypto: talitos - fix hash on SEC1.")
Signed-off-by: Paul Louvel <paul.louvel@bootlin.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'scripts/checkstack.pl')
0 files changed, 0 insertions, 0 deletions