hwrng: amd - use the BIT macro

This patch add usage of the BIT() macro

Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/char/hw_random/amd-rng.c b/drivers/char/hw_random/amd-rng.c
index 45b79654e0719c51010ae9658ae1482f0f1f1a47..d0042f5d857d7232d47f1a19fe4bd7c4899d2bdf 100644 (file)
--- a/drivers/char/hw_random/amd-rng.c
+++ b/drivers/char/hw_random/amd-rng.c
@@ -78,11 +78,11 @@ static int amd_rng_init(struct hwrng *rng)
        u8 rnen;
 
        pci_read_config_byte(amd_pdev, 0x40, &rnen);
-       rnen |= (1 << 7);       /* RNG on */
+       rnen |= BIT(7); /* RNG on */
        pci_write_config_byte(amd_pdev, 0x40, rnen);
 
        pci_read_config_byte(amd_pdev, 0x41, &rnen);
-       rnen |= (1 << 7);       /* PMIO enable */
+       rnen |= BIT(7); /* PMIO enable */
        pci_write_config_byte(amd_pdev, 0x41, rnen);
 
        return 0;
@@ -93,7 +93,7 @@ static void amd_rng_cleanup(struct hwrng *rng)
        u8 rnen;
 
        pci_read_config_byte(amd_pdev, 0x40, &rnen);
-       rnen &= ~(1 << 7);      /* RNG off */
+       rnen &= ~BIT(7);        /* RNG off */
        pci_write_config_byte(amd_pdev, 0x40, rnen);
 }