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char/mwave: make some arrays static const to make object code smaller 

Don't populate arrays on the stack but make them static.  Makes
the object code smaller.  Also remove temporary variables that
have hard coded array sizes and just use ARRAY_SIZE instead and
wrap some lines that are wider than 80 chars to clean up some
checkpatch warnings.

Before:
   text	   data	    bss	    dec	    hex	filename
  11141	   2008	     64	  13213	   339d	drivers/char/mwave/smapi.o

After:
   text	   data	    bss	    dec	    hex	filename
  10697	   2352	     64	  13113	   3339	drivers/char/mwave/smapi.o

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Colin Ian King 2017-07-10 16:08:32 +01:00 коммит произвёл Greg Kroah-Hartman
Родитель 2dee584bc9
Коммит caa97be1a2
1 изменённых файлов: 24 добавлений и 22 удалений
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46
drivers/char/mwave/smapi.c
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@ -128,10 +128,11 @@ int smapi_query_DSP_cfg(SMAPI_DSP_SETTINGS * pSettings)
{
int bRC = -EIO;
unsigned short usAX, usBX, usCX, usDX, usDI, usSI;
unsigned short ausDspBases[] = { 0x0030, 0x4E30, 0x8E30, 0xCE30, 0x0130, 0x0350, 0x0070, 0x0DB0 };
unsigned short ausUartBases[] = { 0x03F8, 0x02F8, 0x03E8, 0x02E8 };
unsigned short numDspBases = 8;
unsigned short numUartBases = 4;
static const unsigned short ausDspBases[] = {
0x0030, 0x4E30, 0x8E30, 0xCE30,
0x0130, 0x0350, 0x0070, 0x0DB0 };
static const unsigned short ausUartBases[] = {
0x03F8, 0x02F8, 0x03E8, 0x02E8 };
PRINTK_1(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg entry\n");
@ -148,7 +149,7 @@ int smapi_query_DSP_cfg(SMAPI_DSP_SETTINGS * pSettings)
pSettings->bDSPEnabled = ((usCX & 0x0001) != 0);
pSettings->usDspIRQ = usSI & 0x00FF;
pSettings->usDspDMA = (usSI & 0xFF00) >> 8;
if ((usDI & 0x00FF) < numDspBases) {
if ((usDI & 0x00FF) < ARRAY_SIZE(ausDspBases)) {
pSettings->usDspBaseIO = ausDspBases[usDI & 0x00FF];
} else {
pSettings->usDspBaseIO = 0;
@ -176,7 +177,7 @@ int smapi_query_DSP_cfg(SMAPI_DSP_SETTINGS * pSettings)
pSettings->bModemEnabled = ((usCX & 0x0001) != 0);
pSettings->usUartIRQ = usSI & 0x000F;
if (((usSI & 0xFF00) >> 8) < numUartBases) {
if (((usSI & 0xFF00) >> 8) < ARRAY_SIZE(ausUartBases)) {
pSettings->usUartBaseIO = ausUartBases[(usSI & 0xFF00) >> 8];
} else {
pSettings->usUartBaseIO = 0;
@ -205,15 +206,16 @@ int smapi_set_DSP_cfg(void)
int bRC = -EIO;
int i;
unsigned short usAX, usBX, usCX, usDX, usDI, usSI;
unsigned short ausDspBases[] = { 0x0030, 0x4E30, 0x8E30, 0xCE30, 0x0130, 0x0350, 0x0070, 0x0DB0 };
unsigned short ausUartBases[] = { 0x03F8, 0x02F8, 0x03E8, 0x02E8 };
unsigned short ausDspIrqs[] = { 5, 7, 10, 11, 15 };
unsigned short ausUartIrqs[] = { 3, 4 };
static const unsigned short ausDspBases[] = {
0x0030, 0x4E30, 0x8E30, 0xCE30,
0x0130, 0x0350, 0x0070, 0x0DB0 };
static const unsigned short ausUartBases[] = {
0x03F8, 0x02F8, 0x03E8, 0x02E8 };
static const unsigned short ausDspIrqs[] = {
5, 7, 10, 11, 15 };
static const unsigned short ausUartIrqs[] = {
3, 4 };
unsigned short numDspBases = 8;
unsigned short numUartBases = 4;
unsigned short numDspIrqs = 5;
unsigned short numUartIrqs = 2;
unsigned short dspio_index = 0, uartio_index = 0;
PRINTK_5(TRACE_SMAPI,
@ -221,11 +223,11 @@ int smapi_set_DSP_cfg(void)
mwave_3780i_irq, mwave_3780i_io, mwave_uart_irq, mwave_uart_io);
if (mwave_3780i_io) {
for (i = 0; i < numDspBases; i++) {
for (i = 0; i < ARRAY_SIZE(ausDspBases); i++) {
if (mwave_3780i_io == ausDspBases[i])
break;
}
if (i == numDspBases) {
if (i == ARRAY_SIZE(ausDspBases)) {
PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_3780i_io address %x. Aborting.\n", mwave_3780i_io);
return bRC;
}
@ -233,22 +235,22 @@ int smapi_set_DSP_cfg(void)
}
if (mwave_3780i_irq) {
for (i = 0; i < numDspIrqs; i++) {
for (i = 0; i < ARRAY_SIZE(ausDspIrqs); i++) {
if (mwave_3780i_irq == ausDspIrqs[i])
break;
}
if (i == numDspIrqs) {
if (i == ARRAY_SIZE(ausDspIrqs)) {
PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_3780i_irq %x. Aborting.\n", mwave_3780i_irq);
return bRC;
}
}
if (mwave_uart_io) {
for (i = 0; i < numUartBases; i++) {
for (i = 0; i < ARRAY_SIZE(ausUartBases); i++) {
if (mwave_uart_io == ausUartBases[i])
break;
}
if (i == numUartBases) {
if (i == ARRAY_SIZE(ausUartBases)) {
PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_uart_io address %x. Aborting.\n", mwave_uart_io);
return bRC;
}
@ -257,11 +259,11 @@ int smapi_set_DSP_cfg(void)
if (mwave_uart_irq) {
for (i = 0; i < numUartIrqs; i++) {
for (i = 0; i < ARRAY_SIZE(ausUartIrqs); i++) {
if (mwave_uart_irq == ausUartIrqs[i])
break;
}
if (i == numUartIrqs) {
if (i == ARRAY_SIZE(ausUartIrqs)) {
PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_uart_irq %x. Aborting.\n", mwave_uart_irq);
return bRC;
}