From 786bf7fdaca4c75e7eba6e9aa3a8b5775fd21186 Mon Sep 17 00:00:00 2001 From: Daniel Golle Date: Mon, 21 Mar 2022 01:16:48 +0000 Subject: kernel: delete Linux 5.4 config and patches As the upcoming release will be based on Linux 5.10 only, remove all kernel configuration as well as patches for Linux 5.4. There were no targets still actively using Linux 5.4. Signed-off-by: Daniel Golle (cherry picked from commit 3a14580411adfb75f9a44eded9f41245b9e44606) --- ...4-chacha-expose-arm64-ChaCha-routine-as-l.patch | 138 --------------------- 1 file changed, 138 deletions(-) delete mode 100644 target/linux/generic/backport-5.4/080-wireguard-0006-crypto-arm64-chacha-expose-arm64-ChaCha-routine-as-l.patch (limited to 'target/linux/generic/backport-5.4/080-wireguard-0006-crypto-arm64-chacha-expose-arm64-ChaCha-routine-as-l.patch') diff --git a/target/linux/generic/backport-5.4/080-wireguard-0006-crypto-arm64-chacha-expose-arm64-ChaCha-routine-as-l.patch b/target/linux/generic/backport-5.4/080-wireguard-0006-crypto-arm64-chacha-expose-arm64-ChaCha-routine-as-l.patch deleted file mode 100644 index 71665e8bfd..0000000000 --- a/target/linux/generic/backport-5.4/080-wireguard-0006-crypto-arm64-chacha-expose-arm64-ChaCha-routine-as-l.patch +++ /dev/null @@ -1,138 +0,0 @@ -From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 -From: Ard Biesheuvel -Date: Fri, 8 Nov 2019 13:22:12 +0100 -Subject: [PATCH] crypto: arm64/chacha - expose arm64 ChaCha routine as library - function - -commit b3aad5bad26a01a4bd8c49a5c5f52aec665f3b7c upstream. - -Expose the accelerated NEON ChaCha routine directly as a symbol -export so that users of the ChaCha library API can use it directly. - -Given that calls into the library API will always go through the -routines in this module if it is enabled, switch to static keys -to select the optimal implementation available (which may be none -at all, in which case we defer to the generic implementation for -all invocations). - -Signed-off-by: Ard Biesheuvel -Signed-off-by: Herbert Xu -Signed-off-by: Jason A. Donenfeld ---- - arch/arm64/crypto/Kconfig | 1 + - arch/arm64/crypto/chacha-neon-glue.c | 53 ++++++++++++++++++++++------ - 2 files changed, 43 insertions(+), 11 deletions(-) - ---- a/arch/arm64/crypto/Kconfig -+++ b/arch/arm64/crypto/Kconfig -@@ -104,6 +104,7 @@ config CRYPTO_CHACHA20_NEON - depends on KERNEL_MODE_NEON - select CRYPTO_BLKCIPHER - select CRYPTO_LIB_CHACHA_GENERIC -+ select CRYPTO_ARCH_HAVE_LIB_CHACHA - - config CRYPTO_NHPOLY1305_NEON - tristate "NHPoly1305 hash function using NEON instructions (for Adiantum)" ---- a/arch/arm64/crypto/chacha-neon-glue.c -+++ b/arch/arm64/crypto/chacha-neon-glue.c -@@ -23,6 +23,7 @@ - #include - #include - #include -+#include - #include - #include - -@@ -36,6 +37,8 @@ asmlinkage void chacha_4block_xor_neon(u - int nrounds, int bytes); - asmlinkage void hchacha_block_neon(const u32 *state, u32 *out, int nrounds); - -+static __ro_after_init DEFINE_STATIC_KEY_FALSE(have_neon); -+ - static void chacha_doneon(u32 *state, u8 *dst, const u8 *src, - int bytes, int nrounds) - { -@@ -59,6 +62,37 @@ static void chacha_doneon(u32 *state, u8 - } - } - -+void hchacha_block_arch(const u32 *state, u32 *stream, int nrounds) -+{ -+ if (!static_branch_likely(&have_neon) || !crypto_simd_usable()) { -+ hchacha_block_generic(state, stream, nrounds); -+ } else { -+ kernel_neon_begin(); -+ hchacha_block_neon(state, stream, nrounds); -+ kernel_neon_end(); -+ } -+} -+EXPORT_SYMBOL(hchacha_block_arch); -+ -+void chacha_init_arch(u32 *state, const u32 *key, const u8 *iv) -+{ -+ chacha_init_generic(state, key, iv); -+} -+EXPORT_SYMBOL(chacha_init_arch); -+ -+void chacha_crypt_arch(u32 *state, u8 *dst, const u8 *src, unsigned int bytes, -+ int nrounds) -+{ -+ if (!static_branch_likely(&have_neon) || bytes <= CHACHA_BLOCK_SIZE || -+ !crypto_simd_usable()) -+ return chacha_crypt_generic(state, dst, src, bytes, nrounds); -+ -+ kernel_neon_begin(); -+ chacha_doneon(state, dst, src, bytes, nrounds); -+ kernel_neon_end(); -+} -+EXPORT_SYMBOL(chacha_crypt_arch); -+ - static int chacha_neon_stream_xor(struct skcipher_request *req, - const struct chacha_ctx *ctx, const u8 *iv) - { -@@ -76,7 +110,8 @@ static int chacha_neon_stream_xor(struct - if (nbytes < walk.total) - nbytes = rounddown(nbytes, walk.stride); - -- if (!crypto_simd_usable()) { -+ if (!static_branch_likely(&have_neon) || -+ !crypto_simd_usable()) { - chacha_crypt_generic(state, walk.dst.virt.addr, - walk.src.virt.addr, nbytes, - ctx->nrounds); -@@ -109,14 +144,7 @@ static int xchacha_neon(struct skcipher_ - u8 real_iv[16]; - - chacha_init_generic(state, ctx->key, req->iv); -- -- if (crypto_simd_usable()) { -- kernel_neon_begin(); -- hchacha_block_neon(state, subctx.key, ctx->nrounds); -- kernel_neon_end(); -- } else { -- hchacha_block_generic(state, subctx.key, ctx->nrounds); -- } -+ hchacha_block_arch(state, subctx.key, ctx->nrounds); - subctx.nrounds = ctx->nrounds; - - memcpy(&real_iv[0], req->iv + 24, 8); -@@ -179,14 +207,17 @@ static struct skcipher_alg algs[] = { - static int __init chacha_simd_mod_init(void) - { - if (!cpu_have_named_feature(ASIMD)) -- return -ENODEV; -+ return 0; -+ -+ static_branch_enable(&have_neon); - - return crypto_register_skciphers(algs, ARRAY_SIZE(algs)); - } - - static void __exit chacha_simd_mod_fini(void) - { -- crypto_unregister_skciphers(algs, ARRAY_SIZE(algs)); -+ if (cpu_have_named_feature(ASIMD)) -+ crypto_unregister_skciphers(algs, ARRAY_SIZE(algs)); - } - - module_init(chacha_simd_mod_init); -- cgit v1.2.3