From 8394bfec51e0e565556101bcc4e2fe7551104cd8 Mon Sep 17 00:00:00 2001 From: "Jason A. Donenfeld" Date: Mon, 25 Nov 2019 11:31:12 +0100 Subject: crypto: arch - conditionalize crypto api in arch glue for lib code For glue code that's used by Zinc, the actual Crypto API functions might not necessarily exist, and don't need to exist either. Before this patch, there are valid build configurations that lead to a unbuildable kernel. This fixes it to conditionalize those symbols on the existence of the proper config entry. Signed-off-by: Jason A. Donenfeld Acked-by: Ard Biesheuvel Signed-off-by: Herbert Xu --- arch/x86/crypto/poly1305_glue.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'arch/x86/crypto/poly1305_glue.c') diff --git a/arch/x86/crypto/poly1305_glue.c b/arch/x86/crypto/poly1305_glue.c index 370cd88068ec..0cc4537e6617 100644 --- a/arch/x86/crypto/poly1305_glue.c +++ b/arch/x86/crypto/poly1305_glue.c @@ -224,12 +224,13 @@ static int __init poly1305_simd_mod_init(void) cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL)) static_branch_enable(&poly1305_use_avx2); - return crypto_register_shash(&alg); + return IS_REACHABLE(CONFIG_CRYPTO_HASH) ? crypto_register_shash(&alg) : 0; } static void __exit poly1305_simd_mod_exit(void) { - crypto_unregister_shash(&alg); + if (IS_REACHABLE(CONFIG_CRYPTO_HASH)) + crypto_unregister_shash(&alg); } module_init(poly1305_simd_mod_init); -- cgit v1.2.3