[PATCH] crypto: virtio - constify features[] and id_table[]

[PATCH] crypto: virtio - constify features[] and id_table[]

[Rikard Falkeborn]

features[] and id_table[] are not modified and can be made const to
allow the compiler to put them in read-only memory.

Before:
   text    data     bss     dec     hex filename
  11534    2056     160   13750    35b6 drivers/crypto/virtio/virtio_crypto_core.o

After:
   text    data     bss     dec     hex filename
  11630    1992     128   13750    35b6 drivers/crypto/virtio/virtio_crypto_core.o

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
---
 drivers/crypto/virtio/virtio_crypto_core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/virtio/virtio_crypto_core.c b/drivers/crypto/virtio/virtio_crypto_core.c
index ba8a19c72391..0c66d6193ca2 100644
--- a/drivers/crypto/virtio/virtio_crypto_core.c
+++ b/drivers/crypto/virtio/virtio_crypto_core.c
@@ -498,11 +498,11 @@ static int virtcrypto_restore(struct virtio_device *vdev)
 }
 #endif
 
-static unsigned int features[] = {
+static const unsigned int features[] = {
 	/* none */
 };
 
-static struct virtio_device_id id_table[] = {
+static const struct virtio_device_id id_table[] = {
 	{ VIRTIO_ID_CRYPTO, VIRTIO_DEV_ANY_ID },
 	{ 0 },
 };
-- 
2.27.0

Re: [PATCH] crypto: virtio - constify features[] and id_table[]

[Herbert Xu]

On Wed, Jul 01, 2020 at 10:29:36PM +0200, Rikard Falkeborn wrote:
> features[] and id_table[] are not modified and can be made const to
> allow the compiler to put them in read-only memory.
> 
> Before:
>    text    data     bss     dec     hex filename
>   11534    2056     160   13750    35b6 drivers/crypto/virtio/virtio_crypto_core.o
> 
> After:
>    text    data     bss     dec     hex filename
>   11630    1992     128   13750    35b6 drivers/crypto/virtio/virtio_crypto_core.o
> 
> Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
> ---
>  drivers/crypto/virtio/virtio_crypto_core.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Patch applied.  Thanks.
-- 
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt