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| author | Herbert Xu <[email protected]> | 2023-03-11 17:09:25 +0800 |
|---|---|---|
| committer | Herbert Xu <[email protected]> | 2023-03-17 11:16:44 +0800 |
| commit | e6af5c0c4d32a27e04a56f29aad587e03ff427f1 (patch) | |
| tree | 2c72d727fa67b443ad31062ba39f75e925d35e99 /drivers/fpga/tests/fpga-mgr-test.c | |
| parent | 9fa4298a95ec42cb63dc5aaf2a8656bb23adf280 (diff) | |
crypto: stm32 - Save and restore between each request
The Crypto API hashing paradigm requires the hardware state to
be exported between *each* request because multiple unrelated
hashes may be processed concurrently.
The stm32 hardware is capable of producing the hardware hashing
state but it was only doing it in the export function. This is
not only broken for export as you can't export a kernel pointer
and reimport it, but it also means that concurrent hashing was
fundamentally broken.
Fix this by moving the saving and restoring of hardware hash
state between each and every hashing request.
Fixes: 8a1012d3f2ab ("crypto: stm32 - Support for STM32 HASH module")
Reported-by: Li kunyu <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
Reviewed-by: Linus Walleij <[email protected]>
Tested-by: Linus Walleij <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
Diffstat (limited to 'drivers/fpga/tests/fpga-mgr-test.c')
0 files changed, 0 insertions, 0 deletions