Merge tag '9p-for-4.20' of git://github.com/martinetd/linux

[sfrench/cifs-2.6.git] / arch / arm64 / crypto / crct10dif-ce-glue.c

diff --git a/arch/arm64/crypto/crct10dif-ce-glue.c b/arch/arm64/crypto/crct10dif-ce-glue.c
index 96f0cae4a02258bad9cf63639da45190499d1696..b461d62023f2b75bf3941dc4da1c8afa3405b9eb 100644 (file)
--- a/arch/arm64/crypto/crct10dif-ce-glue.c
+++ b/arch/arm64/crypto/crct10dif-ce-glue.c
@@ -22,7 +22,10 @@
 
 #define CRC_T10DIF_PMULL_CHUNK_SIZE    16U
 
-asmlinkage u16 crc_t10dif_pmull(u16 init_crc, const u8 buf[], u64 len);
+asmlinkage u16 crc_t10dif_pmull_p64(u16 init_crc, const u8 buf[], u64 len);
+asmlinkage u16 crc_t10dif_pmull_p8(u16 init_crc, const u8 buf[], u64 len);
+
+static u16 (*crc_t10dif_pmull)(u16 init_crc, const u8 buf[], u64 len);
 
 static int crct10dif_init(struct shash_desc *desc)
 {
@@ -85,6 +88,11 @@ static struct shash_alg crc_t10dif_alg = {
 
 static int __init crc_t10dif_mod_init(void)
 {
+       if (elf_hwcap & HWCAP_PMULL)
+               crc_t10dif_pmull = crc_t10dif_pmull_p64;
+       else
+               crc_t10dif_pmull = crc_t10dif_pmull_p8;
+
        return crypto_register_shash(&crc_t10dif_alg);
 }
 
@@ -93,8 +101,10 @@ static void __exit crc_t10dif_mod_exit(void)
        crypto_unregister_shash(&crc_t10dif_alg);
 }
 
-module_cpu_feature_match(PMULL, crc_t10dif_mod_init);
+module_cpu_feature_match(ASIMD, crc_t10dif_mod_init);
 module_exit(crc_t10dif_mod_exit);
 
 MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS_CRYPTO("crct10dif");
+MODULE_ALIAS_CRYPTO("crct10dif-arm64-ce");