From 11d6bc70fff310cf0c4bbfa740144b0e350cd706 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Tue, 31 Mar 2026 17:05:40 -0700 Subject: lib/crypto: arm64/aes: Remove obsolete chunking logic Since commit aefbab8e77eb ("arm64: fpsimd: Preserve/restore kernel mode NEON at context switch"), kernel-mode NEON sections have been preemptible on arm64. And since commit 7dadeaa6e851 ("sched: Further restrict the preemption modes"), voluntary preemption is no longer supported on arm64 either. Therefore, there's no longer any need to limit the length of kernel-mode NEON sections on arm64. Simplify the AES-CBC-MAC code accordingly. Reviewed-by: Ard Biesheuvel Link: https://lore.kernel.org/r/20260401000548.133151-2-ebiggers@kernel.org Signed-off-by: Eric Biggers --- include/crypto/aes.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/crypto/aes.h b/include/crypto/aes.h index 3feb4105c2a2..16fbfd93e2bd 100644 --- a/include/crypto/aes.h +++ b/include/crypto/aes.h @@ -230,9 +230,9 @@ asmlinkage void ce_aes_essiv_cbc_encrypt(u8 out[], u8 const in[], asmlinkage void ce_aes_essiv_cbc_decrypt(u8 out[], u8 const in[], u32 const rk1[], int rounds, int blocks, u8 iv[], u32 const rk2[]); -asmlinkage size_t ce_aes_mac_update(u8 const in[], u32 const rk[], int rounds, - size_t blocks, u8 dg[], int enc_before, - int enc_after); +asmlinkage void ce_aes_mac_update(u8 const in[], u32 const rk[], int rounds, + size_t blocks, u8 dg[], int enc_before, + int enc_after); #elif defined(CONFIG_PPC) void ppc_expand_key_128(u32 *key_enc, const u8 *key); void ppc_expand_key_192(u32 *key_enc, const u8 *key); -- cgit v1.2.3