linux-kernel - [PATCH] hw_random: omap3-rom-rng.c: Remove obsoleted functions

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Date:   Sat, 20 Aug 2016 21:31:06 +0530
From:   PrasannaKumar Muralidharan <prasannatsmkumar@...il.com>
To:     linux-crypto@...r.kernel.org, aaro.koskinen@....fi,
        mpm@...enic.com, herbert@...dor.apana.org.au,
        linux-kernel@...r.kernel.org
Cc:     PrasannaKumar Muralidharan <prasannatsmkumar@...il.com>
Subject: [PATCH] hw_random: omap3-rom-rng.c: Remove obsoleted functions

Remove omap3_rom_rng_data_present method as it was returning 1 always.
Use .read callback instead of .data_read callback. This avoids use of
obsolete callbacks.

This patch is not tested with hardware as I don't have access to it.

Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@...il.com>
---
 drivers/char/hw_random/omap3-rom-rng.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/char/hw_random/omap3-rom-rng.c b/drivers/char/hw_random/omap3-rom-rng.c
index 8da14f1..37a58d7 100644
--- a/drivers/char/hw_random/omap3-rom-rng.c
+++ b/drivers/char/hw_random/omap3-rom-rng.c
@@ -71,12 +71,7 @@ static int omap3_rom_rng_get_random(void *buf, unsigned int count)
 	return 0;
 }
 
-static int omap3_rom_rng_data_present(struct hwrng *rng, int wait)
-{
-	return 1;
-}
-
-static int omap3_rom_rng_data_read(struct hwrng *rng, u32 *data)
+static int omap3_rom_rng_read(struct hwrng *rng, void *data, size_t max, bool w)
 {
 	int r;
 
@@ -88,8 +83,7 @@ static int omap3_rom_rng_data_read(struct hwrng *rng, u32 *data)
 
 static struct hwrng omap3_rom_rng_ops = {
 	.name		= "omap3-rom",
-	.data_present	= omap3_rom_rng_data_present,
-	.data_read	= omap3_rom_rng_data_read,
+	.read		= omap3_rom_rng_read,
 };
 
 static int omap3_rom_rng_probe(struct platform_device *pdev)
-- 
2.5.0