V4L/DVB: drivers/media: Make static data tables and strings const

Making static data const avoids allocation of additional r/w memory and
reduces initialisation time.  It also provides some additional opportunities
for compiler optimisations.

Signed-off-by: Lawrence Rust <lvr@softsystem.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

14 files changed, 15 insertions, 15 deletions

diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.h b/drivers/media/dvb/dvb-core/dvb_frontend.h
index bf0e6bed28dd..f9f19be77181 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.h
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.h
@@ -260,7 +260,7 @@ struct dvb_frontend_ops {
 	int (*init)(struct dvb_frontend* fe);
 	int (*sleep)(struct dvb_frontend* fe);
 
-	int (*write)(struct dvb_frontend* fe, u8* buf, int len);
+	int (*write)(struct dvb_frontend* fe, const u8 buf[], int len);
 
 	/* if this is set, it overrides the default swzigzag */
 	int (*tune)(struct dvb_frontend* fe,
diff --git a/drivers/media/dvb/dvb-usb/friio-fe.c b/drivers/media/dvb/dvb-usb/friio-fe.c
index 93c21ddd0b77..015b4e8af1a5 100644
--- a/drivers/media/dvb/dvb-usb/friio-fe.c
+++ b/drivers/media/dvb/dvb-usb/friio-fe.c
@@ -75,7 +75,7 @@ static int jdvbt90502_single_reg_write(struct jdvbt90502_state *state,
 	return 0;
 }
 
-static int _jdvbt90502_write(struct dvb_frontend *fe, u8 *buf, int len)
+static int _jdvbt90502_write(struct dvb_frontend *fe, const u8 buf[], int len)
 {
 	struct jdvbt90502_state *state = fe->demodulator_priv;
 	int err, i;
diff --git a/drivers/media/dvb/frontends/cx24110.c b/drivers/media/dvb/frontends/cx24110.c
index 00a4e8f03304..7a1a5bc337d8 100644
--- a/drivers/media/dvb/frontends/cx24110.c
+++ b/drivers/media/dvb/frontends/cx24110.c
@@ -310,7 +310,7 @@ static int cx24110_set_symbolrate (struct cx24110_state* state, u32 srate)
 
 }
 
-static int _cx24110_pll_write (struct dvb_frontend* fe, u8 *buf, int len)
+static int _cx24110_pll_write (struct dvb_frontend* fe, const u8 buf[], int len)
 {
 	struct cx24110_state *state = fe->demodulator_priv;
 
diff --git a/drivers/media/dvb/frontends/lgs8gxx.c b/drivers/media/dvb/frontends/lgs8gxx.c
index 5ea28ae2ba8f..0fcddc4569d2 100644
--- a/drivers/media/dvb/frontends/lgs8gxx.c
+++ b/drivers/media/dvb/frontends/lgs8gxx.c
@@ -662,7 +662,7 @@ static void lgs8gxx_release(struct dvb_frontend *fe)
 }
 
 
-static int lgs8gxx_write(struct dvb_frontend *fe, u8 *buf, int len)
+static int lgs8gxx_write(struct dvb_frontend *fe, const u8 buf[], int len)
 {
 	struct lgs8gxx_state *priv = fe->demodulator_priv;
 
diff --git a/drivers/media/dvb/frontends/mt352.c b/drivers/media/dvb/frontends/mt352.c
index beba5aa0db50..319672f8e1a7 100644
--- a/drivers/media/dvb/frontends/mt352.c
+++ b/drivers/media/dvb/frontends/mt352.c
@@ -69,7 +69,7 @@ static int mt352_single_write(struct dvb_frontend *fe, u8 reg, u8 val)
 	return 0;
 }
 
-static int _mt352_write(struct dvb_frontend* fe, u8* ibuf, int ilen)
+static int _mt352_write(struct dvb_frontend* fe, const u8 ibuf[], int ilen)
 {
 	int err,i;
 	for (i=0; i < ilen-1; i++)
diff --git a/drivers/media/dvb/frontends/mt352.h b/drivers/media/dvb/frontends/mt352.h
index 595092f9f0c4..ca2562d6f289 100644
--- a/drivers/media/dvb/frontends/mt352.h
+++ b/drivers/media/dvb/frontends/mt352.h
@@ -63,7 +63,7 @@ static inline struct dvb_frontend* mt352_attach(const struct mt352_config* confi
 }
 #endif // CONFIG_DVB_MT352
 
-static inline int mt352_write(struct dvb_frontend *fe, u8 *buf, int len) {
+static inline int mt352_write(struct dvb_frontend *fe, const u8 buf[], int len) {
 	int r = 0;
 	if (fe->ops.write)
 		r = fe->ops.write(fe, buf, len);
diff --git a/drivers/media/dvb/frontends/si21xx.c b/drivers/media/dvb/frontends/si21xx.c
index d21a327db629..4b0c99a08a85 100644
--- a/drivers/media/dvb/frontends/si21xx.c
+++ b/drivers/media/dvb/frontends/si21xx.c
@@ -268,7 +268,7 @@ static int si21_writereg(struct si21xx_state *state, u8 reg, u8 data)
 	return (ret != 1) ? -EREMOTEIO : 0;
 }
 
-static int si21_write(struct dvb_frontend *fe, u8 *buf, int len)
+static int si21_write(struct dvb_frontend *fe, const u8 buf[], int len)
 {
 	struct si21xx_state *state = fe->demodulator_priv;
 
diff --git a/drivers/media/dvb/frontends/stb6100.c b/drivers/media/dvb/frontends/stb6100.c
index f73c13323e90..80a9e4cba631 100644
--- a/drivers/media/dvb/frontends/stb6100.c
+++ b/drivers/media/dvb/frontends/stb6100.c
@@ -506,7 +506,7 @@ static struct dvb_tuner_ops stb6100_ops = {
 };
 
 struct dvb_frontend *stb6100_attach(struct dvb_frontend *fe,
-				    struct stb6100_config *config,
+				    const struct stb6100_config *config,
 				    struct i2c_adapter *i2c)
 {
 	struct stb6100_state *state = NULL;
diff --git a/drivers/media/dvb/frontends/stb6100.h b/drivers/media/dvb/frontends/stb6100.h
index 395d056599a6..2ab096614b3f 100644
--- a/drivers/media/dvb/frontends/stb6100.h
+++ b/drivers/media/dvb/frontends/stb6100.h
@@ -97,13 +97,13 @@ struct stb6100_state {
 #if defined(CONFIG_DVB_STB6100) || (defined(CONFIG_DVB_STB6100_MODULE) && defined(MODULE))
 
 extern struct dvb_frontend *stb6100_attach(struct dvb_frontend *fe,
-					   struct stb6100_config *config,
+					   const struct stb6100_config *config,
 					   struct i2c_adapter *i2c);
 
 #else
 
 static inline struct dvb_frontend *stb6100_attach(struct dvb_frontend *fe,
-						  struct stb6100_config *config,
+						  const struct stb6100_config *config,
 						  struct i2c_adapter *i2c)
 {
 	printk(KERN_WARNING "%s: Driver disabled by Kconfig\n", __func__);
diff --git a/drivers/media/dvb/frontends/stv0288.c b/drivers/media/dvb/frontends/stv0288.c
index 2930a5d6768a..743989dbb18d 100644
--- a/drivers/media/dvb/frontends/stv0288.c
+++ b/drivers/media/dvb/frontends/stv0288.c
@@ -78,7 +78,7 @@ static int stv0288_writeregI(struct stv0288_state *state, u8 reg, u8 data)
 	return (ret != 1) ? -EREMOTEIO : 0;
 }
 
-static int stv0288_write(struct dvb_frontend *fe, u8 *buf, int len)
+static int stv0288_write(struct dvb_frontend *fe, const u8 buf[], int len)
 {
 	struct stv0288_state *state = fe->demodulator_priv;
 
diff --git a/drivers/media/dvb/frontends/stv0299.c b/drivers/media/dvb/frontends/stv0299.c
index 968874469726..4e3db3a42e06 100644
--- a/drivers/media/dvb/frontends/stv0299.c
+++ b/drivers/media/dvb/frontends/stv0299.c
@@ -92,7 +92,7 @@ static int stv0299_writeregI (struct stv0299_state* state, u8 reg, u8 data)
 	return (ret != 1) ? -EREMOTEIO : 0;
 }
 
-static int stv0299_write(struct dvb_frontend* fe, u8 *buf, int len)
+static int stv0299_write(struct dvb_frontend* fe, const u8 buf[], int len)
 {
 	struct stv0299_state* state = fe->demodulator_priv;
 
diff --git a/drivers/media/dvb/frontends/stv0299.h b/drivers/media/dvb/frontends/stv0299.h
index 0fd96e22b650..ba219b767a69 100644
--- a/drivers/media/dvb/frontends/stv0299.h
+++ b/drivers/media/dvb/frontends/stv0299.h
@@ -65,7 +65,7 @@ struct stv0299_config
 	 * First of each pair is the register, second is the value.
 	 * List should be terminated with an 0xff, 0xff pair.
 	 */
-	u8* inittab;
+	const u8* inittab;
 
 	/* master clock to use */
 	u32 mclk;
diff --git a/drivers/media/dvb/frontends/tda1004x.c b/drivers/media/dvb/frontends/tda1004x.c
index f2a8abe0a243..ea485d923550 100644
--- a/drivers/media/dvb/frontends/tda1004x.c
+++ b/drivers/media/dvb/frontends/tda1004x.c
@@ -598,7 +598,7 @@ static int tda1004x_decode_fec(int tdafec)
 	return -1;
 }
 
-static int tda1004x_write(struct dvb_frontend* fe, u8 *buf, int len)
+static int tda1004x_write(struct dvb_frontend* fe, const u8 buf[], int len)
 {
 	struct tda1004x_state* state = fe->demodulator_priv;
 
diff --git a/drivers/media/dvb/frontends/zl10353.c b/drivers/media/dvb/frontends/zl10353.c
index 8c612719adfc..adbbf6d3d044 100644
--- a/drivers/media/dvb/frontends/zl10353.c
+++ b/drivers/media/dvb/frontends/zl10353.c
@@ -64,7 +64,7 @@ static int zl10353_single_write(struct dvb_frontend *fe, u8 reg, u8 val)
 	return 0;
 }
 
-static int zl10353_write(struct dvb_frontend *fe, u8 *ibuf, int ilen)
+static int zl10353_write(struct dvb_frontend *fe, const u8 ibuf[], int ilen)
 {
 	int err, i;
 	for (i = 0; i < ilen - 1; i++)