This series introduces a flag that algorithms can set to indicate that they allocate memory during processing of typical inputs, and thus shouldn't be used in cases like dm-crypt where memory allocation failures aren't acceptable. Compared to Mikulas's patches, I've made the following improvements: - Tried to clearly document the semantics of CRYPTO_ALG_ALLOCATES_MEMORY. This includes documenting the usage constraints, since there are actually lots of cases that were overlooked where algorithms can still allocate memory in some edge cases where inputs are misaligned, fragemented, etc. E.g. see crypto/skcipher.c and crypto/ahash.c. Mikulas, please let me know if there are any concerns for dm-crypt. - Moved the common mechanism for inheriting flags to its own patch. - crypto_grab_spawn() now handles propagating CRYPTO_ALG_INHERITED_FLAGS to the new template instance. - Inherit the flags in various places that were missed. - Other cleanups. Additional changes v1 => v2: - Made crypto_check_attr_type() return the mask. - Added patch that adds NEED_FALLBACK to INHERITED_FLAGS. - Added patch that removes seqiv_create(). Eric Biggers (5): crypto: geniv - remove unneeded arguments from aead_geniv_alloc() crypto: seqiv - remove seqiv_create() crypto: algapi - use common mechanism for inheriting flags crypto: algapi - add NEED_FALLBACK to INHERITED_FLAGS crypto: algapi - introduce the flag CRYPTO_ALG_ALLOCATES_MEMORY Mikulas Patocka (2): crypto: drivers - set the flag CRYPTO_ALG_ALLOCATES_MEMORY dm-crypt: don't use drivers that have CRYPTO_ALG_ALLOCATES_MEMORY crypto/adiantum.c | 14 +-- crypto/algapi.c | 21 +++- crypto/authenc.c | 14 +-- crypto/authencesn.c | 14 +-- crypto/ccm.c | 33 ++--- crypto/chacha20poly1305.c | 14 +-- crypto/cmac.c | 5 +- crypto/cryptd.c | 59 ++++----- crypto/ctr.c | 17 +-- crypto/cts.c | 13 +- crypto/echainiv.c | 2 +- crypto/essiv.c | 11 +- crypto/gcm.c | 40 ++---- crypto/geniv.c | 19 +-- crypto/hmac.c | 5 +- crypto/lrw.c | 13 +- crypto/pcrypt.c | 14 +-- crypto/rsa-pkcs1pad.c | 13 +- crypto/seqiv.c | 18 +-- crypto/simd.c | 6 +- crypto/skcipher.c | 13 +- crypto/vmac.c | 5 +- crypto/xcbc.c | 5 +- crypto/xts.c | 15 +-- .../crypto/allwinner/sun8i-ce/sun8i-ce-core.c | 12 +- .../crypto/allwinner/sun8i-ss/sun8i-ss-core.c | 12 +- drivers/crypto/amlogic/amlogic-gxl-core.c | 6 +- drivers/crypto/axis/artpec6_crypto.c | 20 ++- drivers/crypto/bcm/cipher.c | 72 ++++++++--- drivers/crypto/caam/caamalg.c | 6 +- drivers/crypto/caam/caamalg_qi.c | 6 +- drivers/crypto/caam/caamalg_qi2.c | 8 +- drivers/crypto/caam/caamhash.c | 2 +- drivers/crypto/cavium/cpt/cptvf_algs.c | 18 ++- drivers/crypto/cavium/nitrox/nitrox_aead.c | 4 +- .../crypto/cavium/nitrox/nitrox_skcipher.c | 16 +-- drivers/crypto/ccp/ccp-crypto-aes-cmac.c | 1 + drivers/crypto/ccp/ccp-crypto-aes-galois.c | 1 + drivers/crypto/ccp/ccp-crypto-aes-xts.c | 1 + drivers/crypto/ccp/ccp-crypto-aes.c | 2 + drivers/crypto/ccp/ccp-crypto-des3.c | 1 + drivers/crypto/ccp/ccp-crypto-sha.c | 1 + drivers/crypto/chelsio/chcr_algo.c | 7 +- drivers/crypto/hisilicon/sec/sec_algs.c | 24 ++-- drivers/crypto/hisilicon/sec2/sec_crypto.c | 4 +- .../crypto/inside-secure/safexcel_cipher.c | 47 +++++++ drivers/crypto/inside-secure/safexcel_hash.c | 18 +++ drivers/crypto/ixp4xx_crypto.c | 6 +- drivers/crypto/marvell/cesa/cipher.c | 18 ++- drivers/crypto/marvell/cesa/hash.c | 6 + .../crypto/marvell/octeontx/otx_cptvf_algs.c | 30 ++--- drivers/crypto/n2_core.c | 3 +- drivers/crypto/picoxcell_crypto.c | 17 ++- drivers/crypto/qat/qat_common/qat_algs.c | 13 +- drivers/crypto/qce/skcipher.c | 1 + drivers/crypto/talitos.c | 117 ++++++++++++------ drivers/crypto/virtio/virtio_crypto_algs.c | 3 +- drivers/crypto/xilinx/zynqmp-aes-gcm.c | 1 + drivers/md/dm-crypt.c | 17 ++- include/crypto/algapi.h | 25 ++-- include/crypto/internal/geniv.h | 2 +- include/linux/crypto.h | 36 +++++- 62 files changed, 562 insertions(+), 405 deletions(-) base-commit: 3d2df84548ed88dc3344392d4e5afb8884d05360 -- 2.27.0
