[PATCH] media: dvb-frontends: tda18271c2dd: Constify static structs

[Rikard Falkeborn]

Constify a number of static structs that were not modified. In order to
be able to do that, const input arguments to a couple of functions that
not modify their argument. This allows the compiler to put them in
read-only memory, resulting in about 6k memory being read-only, and the
resulting module is 400 bytes smaller.

Before:
   text    data     bss     dec     hex filename
  15492    6873       0   22365    575d drivers/media/dvb-frontends/tda18271c2dd.ko

After:
   text    data     bss     dec     hex filename
  21021     897       0   21918    559e drivers/media/dvb-frontends/tda18271c2dd.ko

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@xxxxxxxxx>
---
 drivers/media/dvb-frontends/tda18271c2dd.c    |  8 +++----
 .../media/dvb-frontends/tda18271c2dd_maps.h   | 22 +++++++++----------
 2 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/media/dvb-frontends/tda18271c2dd.c b/drivers/media/dvb-frontends/tda18271c2dd.c
index 43312bba1aec..661cbad76a2c 100644
--- a/drivers/media/dvb-frontends/tda18271c2dd.c
+++ b/drivers/media/dvb-frontends/tda18271c2dd.c
@@ -198,7 +198,7 @@ static void reset(struct tda_state *state)
 	state->m_bFMInput = (ulFMInput == 2);
 }
 
-static bool SearchMap1(struct SMap Map[],
+static bool SearchMap1(const struct SMap Map[],
 		       u32 Frequency, u8 *pParam)
 {
 	int i = 0;
@@ -211,7 +211,7 @@ static bool SearchMap1(struct SMap Map[],
 	return true;
 }
 
-static bool SearchMap2(struct SMapI Map[],
+static bool SearchMap2(const struct SMapI Map[],
 		       u32 Frequency, s32 *pParam)
 {
 	int i = 0;
@@ -225,7 +225,7 @@ static bool SearchMap2(struct SMapI Map[],
 	return true;
 }
 
-static bool SearchMap3(struct SMap2 Map[], u32 Frequency,
+static bool SearchMap3(const struct SMap2 Map[], u32 Frequency,
 		       u8 *pParam1, u8 *pParam2)
 {
 	int i = 0;
@@ -240,7 +240,7 @@ static bool SearchMap3(struct SMap2 Map[], u32 Frequency,
 	return true;
 }
 
-static bool SearchMap4(struct SRFBandMap Map[],
+static bool SearchMap4(const struct SRFBandMap Map[],
 		       u32 Frequency, u8 *pRFBand)
 {
 	int i = 0;
diff --git a/drivers/media/dvb-frontends/tda18271c2dd_maps.h b/drivers/media/dvb-frontends/tda18271c2dd_maps.h
index 5f75516bc0cb..82218e02d77d 100644
--- a/drivers/media/dvb-frontends/tda18271c2dd_maps.h
+++ b/drivers/media/dvb-frontends/tda18271c2dd_maps.h
@@ -6,7 +6,7 @@ enum HF_S {
 	HF_DVBC_8MHZ, HF_DVBC
 };
 
-static struct SStandardParam m_StandardTable[] = {
+static const struct SStandardParam m_StandardTable[] = {
 	{       0,        0, 0x00, 0x00 },    /* HF_None */
 	{ 6000000,  7000000, 0x1D, 0x2C },    /* HF_B, */
 	{ 6900000,  8000000, 0x1E, 0x2C },    /* HF_DK, */
@@ -28,7 +28,7 @@ static struct SStandardParam m_StandardTable[] = {
 	{       0,        0, 0x00, 0x00 },    /* HF_DVBC (Unused) */
 };
 
-static struct SMap  m_BP_Filter_Map[] = {
+static const struct SMap  m_BP_Filter_Map[] = {
 	{   62000000,  0x00 },
 	{   84000000,  0x01 },
 	{  100000000,  0x02 },
@@ -39,7 +39,7 @@ static struct SMap  m_BP_Filter_Map[] = {
 	{          0,  0x00 },    /* Table End */
 };
 
-static struct SMapI m_RF_Cal_Map[] = {
+static const struct SMapI m_RF_Cal_Map[] = {
 	{   41000000,  0x0F },
 	{   43000000,  0x1C },
 	{   45000000,  0x2F },
@@ -481,7 +481,7 @@ static struct SMapI m_RF_Cal_Map[] = {
 };
 
 
-static struct SMap2  m_KM_Map[] = {
+static const struct SMap2  m_KM_Map[] = {
 	{   47900000,  3, 2 },
 	{   61100000,  3, 1 },
 	{  350000000,  3, 0 },
@@ -490,7 +490,7 @@ static struct SMap2  m_KM_Map[] = {
 	{          0,  0x00 },    /* Table End */
 };
 
-static struct SMap2 m_Main_PLL_Map[] = {
+static const struct SMap2 m_Main_PLL_Map[] = {
 	{  33125000, 0x57, 0xF0 },
 	{  35500000, 0x56, 0xE0 },
 	{  38188000, 0x55, 0xD0 },
@@ -534,7 +534,7 @@ static struct SMap2 m_Main_PLL_Map[] = {
 	{         0, 0x00, 0x00 },    /* Table End */
 };
 
-static struct SMap2 m_Cal_PLL_Map[] = {
+static const struct SMap2 m_Cal_PLL_Map[] = {
 	{  33813000, 0xDD, 0xD0 },
 	{  36625000, 0xDC, 0xC0 },
 	{  39938000, 0xDB, 0xB0 },
@@ -572,7 +572,7 @@ static struct SMap2 m_Cal_PLL_Map[] = {
 	{         0, 0x00, 0x00 },    /* Table End */
 };
 
-static struct SMap  m_GainTaper_Map[] = {
+static const struct SMap  m_GainTaper_Map[] = {
 	{  45400000, 0x1F },
 	{  45800000, 0x1E },
 	{  46200000, 0x1D },
@@ -661,7 +661,7 @@ static struct SMap  m_GainTaper_Map[] = {
 	{         0, 0x00 },    /* Table End */
 };
 
-static struct SMap m_RF_Cal_DC_Over_DT_Map[] = {
+static const struct SMap m_RF_Cal_DC_Over_DT_Map[] = {
 	{  47900000, 0x00 },
 	{  55000000, 0x00 },
 	{  61100000, 0x0A },
@@ -767,14 +767,14 @@ static struct SMap m_RF_Cal_DC_Over_DT_Map[] = {
 };
 
 
-static struct SMap  m_IR_Meas_Map[] = {
+static const struct SMap  m_IR_Meas_Map[] = {
 	{ 200000000, 0x05 },
 	{ 400000000, 0x06 },
 	{ 865000000, 0x07 },
 	{         0, 0x00 },    /* Table End */
 };
 
-static struct SMap2 m_CID_Target_Map[] = {
+static const struct SMap2 m_CID_Target_Map[] = {
 	{  46000000, 0x04, 18 },
 	{  52200000, 0x0A, 15 },
 	{  70100000, 0x01, 40 },
@@ -790,7 +790,7 @@ static struct SMap2 m_CID_Target_Map[] = {
 	{         0, 0x00,  0 },    /* Table End */
 };
 
-static struct SRFBandMap  m_RF_Band_Map[7] = {
+static const struct SRFBandMap  m_RF_Band_Map[7] = {
 	{   47900000,   46000000,           0,          0},
 	{   61100000,   52200000,           0,          0},
 	{  152600000,   70100000,   136800000,          0},
-- 
2.28.0