diff --git a/arch/arm/cpu/arm926ejs/omap/cpuinfo.c b/arch/arm/cpu/arm926ejs/omap/cpuinfo.c
index 0052daba8ee8070183a306b69efea72d1a444903..02332eee0e13fa514234288fe7405f4e79d6bff4 100644
--- a/arch/arm/cpu/arm926ejs/omap/cpuinfo.c
+++ b/arch/arm/cpu/arm926ejs/omap/cpuinfo.c
@@ -11,6 +11,7 @@
#include <common.h>
#include <command.h>
+#include <linux/compiler.h>
#if defined(CONFIG_DISPLAY_CPUINFO) && defined(CONFIG_OMAP)
@@ -151,8 +152,8 @@ int print_cpuinfo (void)
u8 die_rev;
u32 omap_id;
u8 cpu_type;
- u32 system_serial_high;
- u32 system_serial_low;
+ __maybe_unused u32 system_serial_high;
+ __maybe_unused u32 system_serial_low;
u32 system_rev = 0;
jtag_id = omap_get_jtag_id();
diff --git a/board/lubbock/flash.c b/board/lubbock/flash.c
index e1e7807bc10d62bf959d9cd77cb9c787d0383e2c..bf8f0c912353895e5bddbbeae1ddf4305a003985 100644
--- a/board/lubbock/flash.c
+++ b/board/lubbock/flash.c
@@ -220,7 +220,7 @@ static ulong flash_get_size (FPW *addr, flash_info_t *info)
int flash_erase (flash_info_t *info, int s_first, int s_last)
{
- int flag, prot, sect;
+ int prot, sect;
ulong type, start;
int rcode = 0;
@@ -255,7 +255,7 @@ int flash_erase (flash_info_t *info, int s_first, int s_last)
}
/* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts ();
+ disable_interrupts();
/* Start erase on unprotected sectors */
for (sect = s_first; sect <= s_last; sect++) {
@@ -389,7 +389,6 @@ static int write_data (flash_info_t *info, ulong dest, FPW data)
{
FPWV *addr = (FPWV *) dest;
ulong status;
- int flag;
ulong start;
/* Check if Flash is (sufficiently) erased */
@@ -398,7 +397,7 @@ static int write_data (flash_info_t *info, ulong dest, FPW data)
return (2);
}
/* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts ();
+ disable_interrupts();
*addr = (FPW) 0x00400040; /* write setup */
*addr = data;
diff --git a/board/mx1ads/mx1ads.c b/board/mx1ads/mx1ads.c
index 86b49fb60dffa67bbcf79ad9396b833af23ac985..da9e21dddbb7bc64f38c33dcafa3c2ef256b0b5f 100644
--- a/board/mx1ads/mx1ads.c
+++ b/board/mx1ads/mx1ads.c
@@ -27,6 +27,7 @@
#include <netdev.h>
/*#include <mc9328.h>*/
#include <asm/arch/imx-regs.h>
+#include <asm/io.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -80,8 +81,6 @@ static u32 mc9328sid;
int board_early_init_f(void)
{
- volatile unsigned int tmp;
-
mc9328sid = SIDR;
GPCR = 0x000003AB; /* I/O pad driving strength */
@@ -107,8 +106,8 @@ int board_early_init_f(void)
GIUS (0) &= 0xFF3FFFFF;
GPR (0) &= 0xFF3FFFFF;
- tmp = *(unsigned int *) (0x1500000C);
- tmp = *(unsigned int *) (0x1500000C);
+ readl(0x1500000C);
+ readl(0x1500000C);
SetAsynchMode ();
diff --git a/board/mx1ads/syncflash.c b/board/mx1ads/syncflash.c
index 7331efa95649b39d8412dbe20201e222252b2fd6..61a882e00b20c2b37ff3e8a302abd8015b2095ed 100644
--- a/board/mx1ads/syncflash.c
+++ b/board/mx1ads/syncflash.c
@@ -57,7 +57,7 @@ flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips
/* Get Status register */
u32 SF_SR(void) {
- u32 tmp,tmp1;
+ u32 tmp;
reg_SFCTL = CMD_PROGRAM;
tmp = __REG(CONFIG_SYS_FLASH_BASE);
@@ -65,7 +65,7 @@ u32 SF_SR(void) {
reg_SFCTL = CMD_NORMAL;
reg_SFCTL = CMD_LCR; /* Activate LCR Mode */
- tmp1 = __REG(CONFIG_SYS_FLASH_BASE + LCR_SR_CLEAR);
+ __REG(CONFIG_SYS_FLASH_BASE + LCR_SR_CLEAR);
return tmp;
}
@@ -93,10 +93,10 @@ u8 SF_Ready(void) {
/* Issue the precharge all command */
void SF_PrechargeAll(void) {
- u32 tmp;
-
- reg_SFCTL = CMD_PREC; /* Set Precharge Command */
- tmp = __REG(CONFIG_SYS_FLASH_BASE + SYNCFLASH_A10); /* Issue Precharge All Command */
+ /* Set Precharge Command */
+ reg_SFCTL = CMD_PREC;
+ /* Issue Precharge All Command */
+ __REG(CONFIG_SYS_FLASH_BASE + SYNCFLASH_A10);
}
/* set SyncFlash to normal mode */
@@ -109,13 +109,12 @@ void SF_Normal(void) {
/* Erase SyncFlash */
void SF_Erase(u32 RowAddress) {
- u32 tmp;
reg_SFCTL = CMD_NORMAL;
- tmp = __REG(RowAddress);
+ __REG(RowAddress);
reg_SFCTL = CMD_PREC;
- tmp = __REG(RowAddress);
+ __REG(RowAddress);
reg_SFCTL = CMD_LCR; /* Set LCR mode */
__REG(RowAddress + LCR_ERASE_CONFIRM) = 0; /* Issue Erase Setup Command */
@@ -152,7 +151,6 @@ void SF_NvmodeWrite(void) {
ulong flash_init(void) {
int i, j;
- u32 tmp;
/* Turn on CSD1 for negating RESETSF of SyncFLash */
@@ -160,7 +158,7 @@ ulong flash_init(void) {
udelay(200);
reg_SFCTL = CMD_LMR; /* Set Load Mode Register Command */
- tmp = __REG(MODE_REG_VAL); /* Issue Load Mode Register Command */
+ __REG(MODE_REG_VAL); /* Issue Load Mode Register Command */
SF_Normal();
diff --git a/board/ronetix/pm9263/pm9263.c b/board/ronetix/pm9263/pm9263.c
index b0f7ea6ddba4692925d714b29ff74bc18b834fad..335efba8edc05ec645a68ddfa5e5054a2f4150ce 100644
--- a/board/ronetix/pm9263/pm9263.c
+++ b/board/ronetix/pm9263/pm9263.c
@@ -164,7 +164,6 @@ void lcd_disable(void)
/* Initialize the PSRAM memory */
static int pm9263_lcd_hw_psram_init(void)
{
- volatile uint16_t x;
unsigned long csa;
struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC1;
struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
@@ -196,14 +195,14 @@ static int pm9263_lcd_hw_psram_init(void)
at91_set_pio_value(PSRAM_CRE_PIN, 0); /* set PSRAM_CRE_PIN to '0' */
/* PSRAM: write BCR */
- x = readw(PSRAM_CTRL_REG);
- x = readw(PSRAM_CTRL_REG);
+ readw(PSRAM_CTRL_REG);
+ readw(PSRAM_CTRL_REG);
writew(1, PSRAM_CTRL_REG); /* 0 - RCR,1 - BCR */
writew(0x9d4f, PSRAM_CTRL_REG); /* write the BCR */
/* write RCR of the PSRAM */
- x = readw(PSRAM_CTRL_REG);
- x = readw(PSRAM_CTRL_REG);
+ readw(PSRAM_CTRL_REG);
+ readw(PSRAM_CTRL_REG);
writew(0, PSRAM_CTRL_REG); /* 0 - RCR,1 - BCR */
/* set RCR; 0x10-async mode,0x90-page mode */
writew(0x90, PSRAM_CTRL_REG);
@@ -222,8 +221,8 @@ static int pm9263_lcd_hw_psram_init(void)
at91_set_pio_value(PSRAM_CRE_PIN, 1); /* set PSRAM_CRE_PIN to '1' */
/* write RCR of the PSRAM */
- x = readw(PSRAM_CTRL_REG);
- x = readw(PSRAM_CTRL_REG);
+ readw(PSRAM_CTRL_REG);
+ readw(PSRAM_CTRL_REG);
writew(0, PSRAM_CTRL_REG); /* 0 - RCR,1 - BCR */
/* set RCR;0x10-async mode,0x90-page mode */
writew(0x90, PSRAM_CTRL_REG);
diff --git a/board/xaeniax/flash.c b/board/xaeniax/flash.c
index 6cb0acaa79fe4b0f8cd48c131eb41654c3231ab0..836c87e1a9d3a2474b891d76ca8178f10bcc2f3b 100644
--- a/board/xaeniax/flash.c
+++ b/board/xaeniax/flash.c
@@ -220,7 +220,7 @@ static ulong flash_get_size (FPW *addr, flash_info_t *info)
int flash_erase (flash_info_t *info, int s_first, int s_last)
{
- int flag, prot, sect;
+ int prot, sect;
ulong type, start;
int rcode = 0;
@@ -255,7 +255,7 @@ int flash_erase (flash_info_t *info, int s_first, int s_last)
}
/* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts ();
+ disable_interrupts();
/* Start erase on unprotected sectors */
for (sect = s_first; sect <= s_last; sect++) {
@@ -389,7 +389,6 @@ static int write_data (flash_info_t *info, ulong dest, FPW data)
{
FPWV *addr = (FPWV *) dest;
ulong status;
- int flag;
ulong start;
/* Check if Flash is (sufficiently) erased */
@@ -398,7 +397,7 @@ static int write_data (flash_info_t *info, ulong dest, FPW data)
return (2);
}
/* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts ();
+ disable_interrupts();
*addr = (FPW) 0x00400040; /* write setup */
*addr = data;
diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c
index d301332d36ddb588819613f6fcf29f0bf3b9ba6c..b073f095ba00610f978d0b4d22b6e69ee24861ae 100644
--- a/common/cmd_bootm.c
+++ b/common/cmd_bootm.c
@@ -36,6 +36,7 @@
#include <lmb.h>
#include <linux/ctype.h>
#include <asm/byteorder.h>
+#include <linux/compiler.h>
#if defined(CONFIG_CMD_USB)
#include <usb.h>
@@ -312,7 +313,7 @@ static int bootm_load_os(image_info_t os, ulong *load_end, int boot_progress)
ulong blob_end = os.end;
ulong image_start = os.image_start;
ulong image_len = os.image_len;
- uint unc_len = CONFIG_SYS_BOOTM_LEN;
+ __maybe_unused uint unc_len = CONFIG_SYS_BOOTM_LEN;
#if defined(CONFIG_LZMA) || defined(CONFIG_LZO)
int ret;
#endif /* defined(CONFIG_LZMA) || defined(CONFIG_LZO) */
diff --git a/drivers/mtd/onenand/samsung.c b/drivers/mtd/onenand/samsung.c
index 20b49124d5a4cdca3d19d3be3485ac83ec77ce5a..ff590645999cf6546f214ae37399f981ff9004c0 100644
--- a/drivers/mtd/onenand/samsung.c
+++ b/drivers/mtd/onenand/samsung.c
@@ -483,12 +483,11 @@ static void s3c_onenand_check_lock_status(struct mtd_info *mtd)
{
struct onenand_chip *this = mtd->priv;
unsigned int block, end;
- int tmp;
end = this->chipsize >> this->erase_shift;
for (block = 0; block < end; block++) {
- tmp = s3c_read_cmd(CMD_MAP_01(onenand->mem_addr(block, 0, 0)));
+ s3c_read_cmd(CMD_MAP_01(onenand->mem_addr(block, 0, 0)));
if (readl(&onenand->reg->int_err_stat) & LOCKED_BLK) {
printf("block %d is write-protected!\n", block);
diff --git a/drivers/net/cs8900.c b/drivers/net/cs8900.c
index 9424fb2bb69cc697ea0fb3ab1a1dc54f511d7aec..e04a784a4bb099eacff6d3ead4ac0ba6ec35267e 100644
--- a/drivers/net/cs8900.c
+++ b/drivers/net/cs8900.c
@@ -66,15 +66,14 @@
static u16 get_reg_init_bus(struct eth_device *dev, int regno)
{
/* force 16 bit busmode */
- volatile u8 c;
struct cs8900_priv *priv = (struct cs8900_priv *)(dev->priv);
uint8_t volatile * const iob = (uint8_t volatile * const)dev->iobase;
- c = readb(iob);
- c = readb(iob + 1);
- c = readb(iob);
- c = readb(iob + 1);
- c = readb(iob);
+ readb(iob);
+ readb(iob + 1);
+ readb(iob);
+ readb(iob + 1);
+ readb(iob);
REG_WRITE(regno, &priv->regs->pptr);
return REG_READ(&priv->regs->pdata);
diff --git a/drivers/net/dnet.c b/drivers/net/dnet.c
index bfe87faa2f9fd34ed81917352335509f9f53579f..15d0a6e7410ec5b5a2338f978f26c0415d99af8a 100644
--- a/drivers/net/dnet.c
+++ b/drivers/net/dnet.c
@@ -20,6 +20,7 @@
#include <miiphy.h>
#include <asm/io.h>
+#include <asm/unaligned.h>
#include "dnet.h"
@@ -133,15 +134,12 @@ static int dnet_send(struct eth_device *netdev, volatile void *packet,
int length)
{
struct dnet_device *dnet = to_dnet(netdev);
- int i, len, wrsz;
+ int i, wrsz;
unsigned int *bufp;
unsigned int tx_cmd;
debug(DRIVERNAME "[%s] Sending %u bytes\n", __func__, length);
- /* frame size (words) */
- len = (length + 3) >> 2;
-
bufp = (unsigned int *) (((u32)packet) & 0xFFFFFFFC);
wrsz = (u32)length + 3;
wrsz += ((u32)packet) & 0x3;
@@ -206,11 +204,11 @@ static void dnet_set_hwaddr(struct eth_device *netdev)
struct dnet_device *dnet = to_dnet(netdev);
u16 tmp;
- tmp = cpu_to_be16(*((u16 *)netdev->enetaddr));
+ tmp = get_unaligned_be16(netdev->enetaddr);
dnet_writew_mac(dnet, DNET_INTERNAL_MAC_ADDR_0_REG, tmp);
- tmp = cpu_to_be16(*((u16 *)(netdev->enetaddr + 2)));
+ tmp = get_unaligned_be16(&netdev->enetaddr[2]);
dnet_writew_mac(dnet, DNET_INTERNAL_MAC_ADDR_1_REG, tmp);
- tmp = cpu_to_be16(*((u16 *)(netdev->enetaddr + 4)));
+ tmp = get_unaligned_be16(&netdev->enetaddr[4]);
dnet_writew_mac(dnet, DNET_INTERNAL_MAC_ADDR_2_REG, tmp);
}
diff --git a/drivers/net/lan91c96.c b/drivers/net/lan91c96.c
index 883f3a7c5d00ce392edbbb9c9cd11e6934f4d42d..24b28da249b0375a16d72255124ee8af3e7e2ef6 100644
--- a/drivers/net/lan91c96.c
+++ b/drivers/net/lan91c96.c
@@ -63,6 +63,7 @@
#include <malloc.h>
#include "lan91c96.h"
#include <net.h>
+#include <linux/compiler.h>
/*------------------------------------------------------------------------
*
@@ -154,7 +155,7 @@ static void smc_set_mac_addr(const unsigned char *addr)
***********************************************/
void dump_memory_info(struct eth_device *dev)
{
- word mem_info;
+ __maybe_unused word mem_info;
word old_bank;
old_bank = SMC_inw(dev, LAN91C96_BANK_SELECT) & 0xF;
@@ -317,7 +318,6 @@ static int smc_send_packet(struct eth_device *dev, volatile void *packet,
int packet_length)
{
byte packet_no;
- unsigned long ioaddr;
byte *buf;
int length;
int numPages;
@@ -381,9 +381,6 @@ static int smc_send_packet(struct eth_device *dev, volatile void *packet,
dev->name, try);
/* I can send the packet now.. */
-
- ioaddr = dev->iobase;
-
buf = (byte *) packet;
/* If I get here, I _know_ there is a packet slot waiting for me */
diff --git a/drivers/usb/musb/musb_hcd.c b/drivers/usb/musb/musb_hcd.c
index 974bb311cca473b0b19e58b140f962df669d2d05..325edb9677d48c69a427a8c3923a626b6fc7c9d0 100644
--- a/drivers/usb/musb/musb_hcd.c
+++ b/drivers/usb/musb/musb_hcd.c
@@ -848,7 +848,6 @@ int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
int len, struct devrequest *setup)
{
int devnum = usb_pipedevice(pipe);
- u16 csr;
u8 devspeed;
#ifdef MUSB_NO_MULTIPOINT
@@ -862,7 +861,7 @@ int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
/* select control endpoint */
writeb(MUSB_CONTROL_EP, &musbr->index);
- csr = readw(&musbr->txcsr);
+ readw(&musbr->txcsr);
#ifndef MUSB_NO_MULTIPOINT
/* target addr and (for multipoint) hub addr/port */
diff --git a/net/bootp.c b/net/bootp.c
index b789eec0d7edc3966da5197c1f7bbe5a330ce609..34124b8fc2425d6fe70e3b5cd42ec159119670df 100644
--- a/net/bootp.c
+++ b/net/bootp.c
@@ -17,6 +17,7 @@
#ifdef CONFIG_STATUS_LED
#include <status_led.h>
#endif
+#include <linux/compiler.h>
#define BOOTP_VENDOR_MAGIC 0x63825363 /* RFC1048 Magic Cookie */
@@ -105,7 +106,7 @@ static int BootpCheckPkt(uchar *pkt, unsigned dest, unsigned src, unsigned len)
*/
static void BootpCopyNetParams(Bootp_t *bp)
{
- IPaddr_t tmp_ip;
+ __maybe_unused IPaddr_t tmp_ip;
NetCopyIP(&NetOurIP, &bp->bp_yiaddr);
#if !defined(CONFIG_BOOTP_SERVERIP)