diff options
| author | Herbert Xu <herbert@gondor.apana.org.au> | 2025-04-12 13:16:43 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2025-04-16 15:36:24 +0800 |
| commit | f1440a90465bea1993f937ac7add592ce1e4ff44 (patch) | |
| tree | a1000e8fd4220a04b318b7fabc191a2b7fb22818 /include/linux/crypto.h | |
| parent | 66fecd9d94034b6193636fe3bc01f089439f5413 (diff) | |
crypto: api - Add support for duplicating algorithms before registration
If the bit CRYPTO_ALG_DUP_FIRST is set, an algorithm will be
duplicated by kmemdup before registration. This is inteded for
hardware-based algorithms that may be unplugged at will.
Do not use this if the algorithm data structure is embedded in a
bigger data structure. Perform the duplication in the driver
instead.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/linux/crypto.h')
| -rw-r--r-- | include/linux/crypto.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/crypto.h b/include/linux/crypto.h index 15476b085ce3..b89b1b348095 100644 --- a/include/linux/crypto.h +++ b/include/linux/crypto.h @@ -50,6 +50,15 @@ #define CRYPTO_ALG_NEED_FALLBACK 0x00000100 /* + * Set if the algorithm data structure should be duplicated into + * kmalloc memory before registration. This is useful for hardware + * that can be disconnected at will. Do not use this if the data + * structure is embedded into a bigger one. Duplicate the overall + * data structure in the driver in that case. + */ +#define CRYPTO_ALG_DUP_FIRST 0x00000200 + +/* * Set if the algorithm has passed automated run-time testing. Note that * if there is no run-time testing for a given algorithm it is considered * to have passed. |