Linux cryptographic layer development
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From: Rikard Falkeborn <rikard.falkeborn@gmail.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Arnd Bergmann <arnd@arndb.de>
Cc: Rikard Falkeborn <rikard.falkeborn@gmail.com>,
	Matt Mackall <mpm@selenic.com>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 3/5] hwrng: virtio - Constify id_table[]
Date: Wed,  1 Jul 2020 22:09:48 +0200	[thread overview]
Message-ID: <20200701200950.30314-4-rikard.falkeborn@gmail.com> (raw)
In-Reply-To: <20200701200950.30314-1-rikard.falkeborn@gmail.com>

id_table[] is not modified and an be made const to allow the compiler to
put it in read-only memory.

Before:
   text    data     bss     dec     hex filename
   1746     192       8    1946     79a drivers/char/hw_random/virtio-rng.o

After:
   text    data     bss     dec     hex filename
   1762     176       8    1946     79a drivers/char/hw_random/virtio-rng.o

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
---
 drivers/char/hw_random/virtio-rng.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/hw_random/virtio-rng.c b/drivers/char/hw_random/virtio-rng.c
index 79a6e47b5fbc..a90001e02bf7 100644
--- a/drivers/char/hw_random/virtio-rng.c
+++ b/drivers/char/hw_random/virtio-rng.c
@@ -195,7 +195,7 @@ static int virtrng_restore(struct virtio_device *vdev)
 }
 #endif
 
-static struct virtio_device_id id_table[] = {
+static const struct virtio_device_id id_table[] = {
 	{ VIRTIO_ID_RNG, VIRTIO_DEV_ANY_ID },
 	{ 0 },
 };
-- 
2.27.0


  parent reply	other threads:[~2020-07-01 21:48 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-01 20:09 [PATCH 0/5] drivers/char: Constify static variables Rikard Falkeborn
2020-07-01 20:09 ` [PATCH 1/5] hwrng: bcm2835 - Constify bcm2835_rng_devtype[] Rikard Falkeborn
2020-07-01 21:52   ` Florian Fainelli
2020-07-01 20:09 ` [PATCH 2/5] hwrng: nomadik - Constify nmk_rng_ids[] Rikard Falkeborn
2020-07-02  7:51   ` Arnd Bergmann
2020-07-01 20:09 ` Rikard Falkeborn [this message]
2020-07-02  8:58 ` [PATCH 0/5] drivers/char: Constify static variables Arnd Bergmann
2020-07-09 12:54 ` Herbert Xu

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