diff mbox series

crypto: aegis128 - fix link error without SIMD

Message ID 20201203222557.952393-1-arnd@kernel.org
State New
Headers show
Series crypto: aegis128 - fix link error without SIMD | expand

Commit Message

Arnd Bergmann Dec. 3, 2020, 10:25 p.m. UTC
From: Arnd Bergmann <arnd@arndb.de>


When the SIMD portion of the driver is disabled, the compiler cannot
figure out in advance if it will be called:

ERROR: modpost: "crypto_aegis128_update_simd" [crypto/aegis128.ko] undefined!

Add a conditional to let the compiler use dead code elimination
as before.

Fixes: ac50aec41a9f ("crypto: aegis128 - expose SIMD code path as separate driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

---
 crypto/aegis128-core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

-- 
2.27.0

Comments

Ard Biesheuvel Dec. 4, 2020, 8:22 a.m. UTC | #1
On Thu, 3 Dec 2020 at 23:26, Arnd Bergmann <arnd@kernel.org> wrote:
>

> From: Arnd Bergmann <arnd@arndb.de>

>

> When the SIMD portion of the driver is disabled, the compiler cannot

> figure out in advance if it will be called:

>

> ERROR: modpost: "crypto_aegis128_update_simd" [crypto/aegis128.ko] undefined!

>

> Add a conditional to let the compiler use dead code elimination

> as before.

>

> Fixes: ac50aec41a9f ("crypto: aegis128 - expose SIMD code path as separate driver")

> Signed-off-by: Arnd Bergmann <arnd@arndb.de>


I already sent the exact same fix a couple of days ago, and Herbert
just merged it today.

> ---

>  crypto/aegis128-core.c | 4 ++--

>  1 file changed, 2 insertions(+), 2 deletions(-)

>

> diff --git a/crypto/aegis128-core.c b/crypto/aegis128-core.c

> index 2b05f79475d3..89dc1c559689 100644

> --- a/crypto/aegis128-core.c

> +++ b/crypto/aegis128-core.c

> @@ -89,7 +89,7 @@ static void crypto_aegis128_update_a(struct aegis_state *state,

>                                      const union aegis_block *msg,

>                                      bool do_simd)

>  {

> -       if (do_simd) {

> +       if (IS_ENABLED(CONFIG_CRYPTO_AEGIS128_SIMD) && do_simd) {

>                 crypto_aegis128_update_simd(state, msg);

>                 return;

>         }

> @@ -101,7 +101,7 @@ static void crypto_aegis128_update_a(struct aegis_state *state,

>  static void crypto_aegis128_update_u(struct aegis_state *state, const void *msg,

>                                      bool do_simd)

>  {

> -       if (do_simd) {

> +       if (IS_ENABLED(CONFIG_CRYPTO_AEGIS128_SIMD) && do_simd) {

>                 crypto_aegis128_update_simd(state, msg);

>                 return;

>         }

> --

> 2.27.0

>
diff mbox series

Patch

diff --git a/crypto/aegis128-core.c b/crypto/aegis128-core.c
index 2b05f79475d3..89dc1c559689 100644
--- a/crypto/aegis128-core.c
+++ b/crypto/aegis128-core.c
@@ -89,7 +89,7 @@  static void crypto_aegis128_update_a(struct aegis_state *state,
 				     const union aegis_block *msg,
 				     bool do_simd)
 {
-	if (do_simd) {
+	if (IS_ENABLED(CONFIG_CRYPTO_AEGIS128_SIMD) && do_simd) {
 		crypto_aegis128_update_simd(state, msg);
 		return;
 	}
@@ -101,7 +101,7 @@  static void crypto_aegis128_update_a(struct aegis_state *state,
 static void crypto_aegis128_update_u(struct aegis_state *state, const void *msg,
 				     bool do_simd)
 {
-	if (do_simd) {
+	if (IS_ENABLED(CONFIG_CRYPTO_AEGIS128_SIMD) && do_simd) {
 		crypto_aegis128_update_simd(state, msg);
 		return;
 	}