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authorJason A. Donenfeld <Jason@zx2c4.com>2019-06-02 19:45:08 +0200
committerJason A. Donenfeld <Jason@zx2c4.com>2019-06-02 19:45:08 +0200
commitb57de923d8c725ef8d55e7ad458f1f456f98adbf (patch)
tree1d2698bb26becec4f6a1838093ff1049070575e5 /src/crypto/zinc/curve25519/curve25519-x86_64-glue.c
parentversion: bump snapshot (diff)
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curve25519: not all linkers support bmi2 and adx
Diffstat (limited to 'src/crypto/zinc/curve25519/curve25519-x86_64-glue.c')
-rw-r--r--src/crypto/zinc/curve25519/curve25519-x86_64-glue.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/src/crypto/zinc/curve25519/curve25519-x86_64-glue.c b/src/crypto/zinc/curve25519/curve25519-x86_64-glue.c
index 19c86c6..d62bd37 100644
--- a/src/crypto/zinc/curve25519/curve25519-x86_64-glue.c
+++ b/src/crypto/zinc/curve25519/curve25519-x86_64-glue.c
@@ -15,8 +15,10 @@ static bool *const curve25519_nobs[] __initconst = {
static void __init curve25519_fpu_init(void)
{
- curve25519_use_bmi2 = boot_cpu_has(X86_FEATURE_BMI2);
- curve25519_use_adx = boot_cpu_has(X86_FEATURE_BMI2) &&
+ curve25519_use_bmi2 = IS_ENABLED(CONFIG_AS_BMI2) &&
+ boot_cpu_has(X86_FEATURE_BMI2);
+ curve25519_use_adx = IS_ENABLED(CONFIG_AS_ADX) &&
+ boot_cpu_has(X86_FEATURE_BMI2) &&
boot_cpu_has(X86_FEATURE_ADX);
}
@@ -24,10 +26,10 @@ static inline bool curve25519_arch(u8 mypublic[CURVE25519_KEY_SIZE],
const u8 secret[CURVE25519_KEY_SIZE],
const u8 basepoint[CURVE25519_KEY_SIZE])
{
- if (curve25519_use_adx) {
+ if (IS_ENABLED(CONFIG_AS_ADX) && curve25519_use_adx) {
curve25519_adx(mypublic, secret, basepoint);
return true;
- } else if (curve25519_use_bmi2) {
+ } else if (IS_ENABLED(CONFIG_AS_BMI2) && curve25519_use_bmi2) {
curve25519_bmi2(mypublic, secret, basepoint);
return true;
}
@@ -37,10 +39,10 @@ static inline bool curve25519_arch(u8 mypublic[CURVE25519_KEY_SIZE],
static inline bool curve25519_base_arch(u8 pub[CURVE25519_KEY_SIZE],
const u8 secret[CURVE25519_KEY_SIZE])
{
- if (curve25519_use_adx) {
+ if (IS_ENABLED(CONFIG_AS_ADX) && curve25519_use_adx) {
curve25519_adx_base(pub, secret);
return true;
- } else if (curve25519_use_bmi2) {
+ } else if (IS_ENABLED(CONFIG_AS_BMI2) && curve25519_use_bmi2) {
curve25519_bmi2_base(pub, secret);
return true;
}