linux.git/arch/mips/lib, branch v6.16

Merge tag 'v6.16-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

2025-05-26T20:47:28+00:00

Pull crypto updates from Herbert Xu:
 "API:
   - Fix memcpy_sglist to handle partially overlapping SG lists
   - Use memcpy_sglist to replace null skcipher
   - Rename CRYPTO_TESTS to CRYPTO_BENCHMARK
   - Flip CRYPTO_MANAGER_DISABLE_TEST into CRYPTO_SELFTESTS
   - Hide CRYPTO_MANAGER
   - Add delayed freeing of driver crypto_alg structures

  Compression:
   - Allocate large buffers on first use instead of initialisation in scomp
   - Drop destination linearisation buffer in scomp
   - Move scomp stream allocation into acomp
   - Add acomp scatter-gather walker
   - Remove request chaining
   - Add optional async request allocation

  Hashing:
   - Remove request chaining
   - Add optional async request allocation
   - Move partial block handling into API
   - Add ahash support to hmac
   - Fix shash documentation to disallow usage in hard IRQs

  Algorithms:
   - Remove unnecessary SIMD fallback code on x86 and arm/arm64
   - Drop avx10_256 xts(aes)/ctr(aes) on x86
   - Improve avx-512 optimisations for xts(aes)
   - Move chacha arch implementations into lib/crypto
   - Move poly1305 into lib/crypto and drop unused Crypto API algorithm
   - Disable powerpc/poly1305 as it has no SIMD fallback
   - Move sha256 arch implementations into lib/crypto
   - Convert deflate to acomp
   - Set block size correctly in cbcmac

  Drivers:
   - Do not use sg_dma_len before mapping in sun8i-ss
   - Fix warm-reboot failure by making shutdown do more work in qat
   - Add locking in zynqmp-sha
   - Remove cavium/zip
   - Add support for PCI device 0x17D8 to ccp
   - Add qat_6xxx support in qat
   - Add support for RK3576 in rockchip-rng
   - Add support for i.MX8QM in caam

  Others:
   - Fix irq_fpu_usable/kernel_fpu_begin inconsistency during CPU bring-up
   - Add new SEV/SNP platform shutdown API in ccp"

* tag 'v6.16-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (382 commits)
  x86/fpu: Fix irq_fpu_usable() to return false during CPU onlining
  crypto: qat - add missing header inclusion
  crypto: api - Redo lookup on EEXIST
  Revert "crypto: testmgr - Add hash export format testing"
  crypto: marvell/cesa - Do not chain submitted requests
  crypto: powerpc/poly1305 - add depends on BROKEN for now
  Revert "crypto: powerpc/poly1305 - Add SIMD fallback"
  crypto: ccp - Add missing tee info reg for teev2
  crypto: ccp - Add missing bootloader info reg for pspv5
  crypto: sun8i-ce - move fallback ahash_request to the end of the struct
  crypto: octeontx2 - Use dynamic allocated memory region for lmtst
  crypto: octeontx2 - Initialize cptlfs device info once
  crypto: xts - Only add ecb if it is not already there
  crypto: lrw - Only add ecb if it is not already there
  crypto: testmgr - Add hash export format testing
  crypto: testmgr - Use ahash for generic tfm
  crypto: hmac - Add ahash support
  crypto: testmgr - Ignore EEXIST on shash allocation
  crypto: algapi - Add driver template support to crypto_inst_setname
  crypto: shash - Set reqsize in shash_alg
  ...

crypto: lib/chacha - add array bounds to function prototypes

2025-05-12T05:32:53+00:00

Add explicit array bounds to the function prototypes for the parameters
that didn't already get handled by the conversion to use chacha_state:

- chacha_block_*():
  Change 'u8 *out' or 'u8 *stream' to u8 out[CHACHA_BLOCK_SIZE].

- hchacha_block_*():
  Change 'u32 *out' or 'u32 *stream' to u32 out[HCHACHA_OUT_WORDS].

- chacha_init():
  Change 'const u32 *key' to 'const u32 key[CHACHA_KEY_WORDS]'.
  Change 'const u8 *iv' to 'const u8 iv[CHACHA_IV_SIZE]'.

No functional changes.  This just makes it clear when fixed-size arrays
are expected.

Signed-off-by: Eric Biggers 
Signed-off-by: Herbert Xu

crypto: lib/chacha - strongly type the ChaCha state

2025-05-12T05:32:53+00:00

The ChaCha state matrix is 16 32-bit words.  Currently it is represented
in the code as a raw u32 array, or even just a pointer to u32.  This
weak typing is error-prone.  Instead, introduce struct chacha_state:

    struct chacha_state {
            u32 x[16];
    };

Convert all ChaCha and HChaCha functions to use struct chacha_state.
No functional changes.

Signed-off-by: Eric Biggers 
Acked-by: Kent Overstreet 
Signed-off-by: Herbert Xu

lib/crc: make arch-optimized code use subsys_initcall

2025-05-10T04:02:37+00:00

Make the architecture-optimized CRC code do its CPU feature checks in
subsys_initcalls instead of arch_initcalls.  This makes it consistent
with arch/*/lib/crypto/ and ensures that it runs after initcalls that
possibly could be a prerequisite for kernel-mode FPU, such as x86's
xfd_update_static_branch() and loongarch's init_euen_mask().

Note: as far as I can tell, x86's xfd_update_static_branch() isn't
*actually* needed for kernel-mode FPU.  loongarch's init_euen_mask() is
needed to enable save/restore of the vector registers, but loongarch
doesn't yet have any CRC or crypto code that uses vector registers
anyway.  Regardless, let's be consistent with arch/*/lib/crypto/ and
robust against any potential future dependency on an arch_initcall.

Link: https://lore.kernel.org/r/20250510035959.87995-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers

crypto: lib/poly1305 - Use block-only interface

2025-05-05T05:33:02+00:00

Now that every architecture provides a block function, use that
to implement the lib/poly1305 and remove the old per-arch code.

Signed-off-by: Herbert Xu

crypto: mips/poly1305 - Add block-only interface

2025-05-05T05:32:54+00:00

Add block-only interface.

Signed-off-by: Herbert Xu

lib/crc: make the CPU feature static keys __ro_after_init

2025-04-28T16:07:19+00:00

All of the CRC library's CPU feature static_keys are initialized by
initcalls and never change afterwards, so there's no need for them to be
in the regular .data section.  Put them in .data..ro_after_init instead.

Reviewed-by: "Martin K. Petersen" 
Acked-by: Ard Biesheuvel 
Acked-by: Heiko Carstens  # s390
Link: https://lore.kernel.org/r/20250413154350.10819-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers

crypto: lib/poly1305 - remove INTERNAL symbol and selection of CRYPTO

2025-04-28T11:40:54+00:00

Now that the architecture-optimized Poly1305 kconfig symbols are defined
regardless of CRYPTO, there is no need for CRYPTO_LIB_POLY1305 to select
CRYPTO.  So, remove that.  This makes the indirection through the
CRYPTO_LIB_POLY1305_INTERNAL symbol unnecessary, so get rid of that and
just use CRYPTO_LIB_POLY1305 directly.  Finally, make the fallback to
the generic implementation use a default value instead of a select; this
makes it consistent with how the arch-optimized code gets enabled and
also with how CRYPTO_LIB_BLAKE2S_GENERIC gets enabled.

Signed-off-by: Eric Biggers 
Signed-off-by: Herbert Xu

crypto: lib/chacha - remove INTERNAL symbol and selection of CRYPTO

2025-04-28T11:40:54+00:00

Now that the architecture-optimized ChaCha kconfig symbols are defined
regardless of CRYPTO, there is no need for CRYPTO_LIB_CHACHA to select
CRYPTO.  So, remove that.  This makes the indirection through the
CRYPTO_LIB_CHACHA_INTERNAL symbol unnecessary, so get rid of that and
just use CRYPTO_LIB_CHACHA directly.  Finally, make the fallback to the
generic implementation use a default value instead of a select; this
makes it consistent with how the arch-optimized code gets enabled and
also with how CRYPTO_LIB_BLAKE2S_GENERIC gets enabled.

Signed-off-by: Eric Biggers 
Signed-off-by: Herbert Xu

crypto: mips - move library functions to arch/mips/lib/crypto/

2025-04-28T11:40:53+00:00

Continue disentangling the crypto library functions from the generic
crypto infrastructure by moving the mips ChaCha and Poly1305 library
functions into a new directory arch/mips/lib/crypto/ that does not
depend on CRYPTO.  This mirrors the distinction between crypto/ and
lib/crypto/.

Signed-off-by: Eric Biggers 
Signed-off-by: Herbert Xu