crypto: stm32/crc32 - protect from concurrent accesses

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Protect STM32 CRC device from concurrent accesses.

As we create a spinlocked section that increase with buffer size,
we provide a module parameter to release the pressure by splitting
critical section in chunks.

Size of each chunk is defined in burst_size module parameter.
By default burst_size=0, i.e. don't split incoming buffer.

Signed-off-by: Nicolas Toromanoff <nicolas.toromanoff@st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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Nicolas Toromanoff 2020-05-12 16:11:13 +02:00 • committed by Herbert Xu

parent 100f84beee

commit 7795c0baf5

1 changed files with 45 additions and 2 deletions

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drivers/crypto/stm32/stm32-crc32.c

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