linux/kernel.h: sync min, max, min3, max3 macros with Linux

U-Boot has never cared about the type when we get max/min of two
values, but Linux Kernel does.  This commit gets min, max, min3, max3
macros synced with the kernel introducing type checks.

Many of references of those macros must be fixed to suppress warnings.
We have two options:
 - Use min, max, min3, max3 only when the arguments have the same type
   (or add casts to the arguments)
 - Use min_t/max_t instead with the appropriate type for the first
   argument

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Pavel Machek <pavel@denx.de>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
[trini: Fixup arch/blackfin/lib/string.c]
Signed-off-by: Tom Rini <trini@ti.com>

arch/arm/cpu/arm1176/tnetv107x/clock.c

@@ -16,7 +16,7 @@
 #define BIT(x)			(1 << (x))
 
 #define MAX_PREDIV		64
-#define MAX_POSTDIV		8
+#define MAX_POSTDIV		8UL
 #define MAX_MULT		512
 #define MAX_DIV			(MAX_PREDIV * MAX_POSTDIV)
 
@@ -362,7 +362,7 @@ static void init_pll(const struct pll_init_data *data)
 	pllctl_reg_write(data->pll, ctl, tmp);
 
 	mult = data->pll_freq / fpll;
-	for (mult = max(mult, 1); mult <= MAX_MULT; mult++) {
+	for (mult = max(mult, 1UL); mult <= MAX_MULT; mult++) {
 		div = (fpll * mult) / data->pll_freq;
 		if (div < 1 || div > MAX_DIV)
 			continue;

arch/arm/cpu/armv7/exynos/clock.c

@@ -1422,8 +1422,8 @@ static int clock_calc_best_scalar(unsigned int main_scaler_bits,
 		return 1;
 
 	for (i = 1; i <= loops; i++) {
-		const unsigned int effective_div = max(min(input_rate / i /
-							target_rate, cap), 1);
+		const unsigned int effective_div =
+			max(min(input_rate / i / target_rate, cap), 1U);
 		const unsigned int effective_rate = input_rate / i /
 							effective_div;
 		const int error = target_rate - effective_rate;

arch/arm/cpu/armv7/exynos/spl_boot.c

@@ -151,7 +151,7 @@ static void exynos_spi_copy(unsigned int uboot_size, unsigned int uboot_addr)
 	}
 
 	for (upto = 0, i = 0; upto < uboot_size; upto += todo, i++) {
-		todo = min(uboot_size - upto, (1 << 15));
+		todo = min(uboot_size - upto, (unsigned int)(1 << 15));
 		spi_rx_tx(regs, todo, (void *)(uboot_addr),
 			  (void *)(SPI_FLASH_UBOOT_POS), i);
 	}

arch/arm/cpu/armv7/tegra20/display.c

@@ -45,8 +45,8 @@ static void update_window(struct dc_ctlr *dc, struct disp_ctl_win *win)
 	writel(0, &dc->win.h_initial_dda);
 	writel(0, &dc->win.v_initial_dda);
 
-	h_dda = (win->w * 0x1000) / max(win->out_w - 1, 1);
-	v_dda = (win->h * 0x1000) / max(win->out_h - 1, 1);
+	h_dda = (win->w * 0x1000) / max(win->out_w - 1, 1U);
+	v_dda = (win->h * 0x1000) / max(win->out_h - 1, 1U);
 
 	val = h_dda << H_DDA_INC_SHIFT;
 	val |= v_dda << V_DDA_INC_SHIFT;

arch/avr32/cpu/at32ap700x/clk.c

@@ -72,7 +72,7 @@ unsigned long __gclk_set_rate(unsigned int id, enum gclk_parent parent,
 		sm_writel(PM_GCCTRL(id), parent | SM_BIT(CEN));
 		rate = parent_rate;
 	} else {
-		divider = min(255, divider / 2 - 1);
+		divider = min(255UL, divider / 2 - 1);
 		sm_writel(PM_GCCTRL(id), parent | SM_BIT(CEN) | SM_BIT(DIVEN)
 				| SM_BF(DIV, divider));
 		rate = parent_rate / (2 * (divider + 1));

arch/blackfin/cpu/jtag-console.c

@@ -168,7 +168,7 @@ static int jtag_getc(struct stdio_dev *dev)
 		inbound_len = emudat;
 	} else {
 		/* store the bytes */
-		leftovers_len = min(4, inbound_len);
+		leftovers_len = min((size_t)4, inbound_len);
 		inbound_len -= leftovers_len;
 		leftovers = emudat;
 	}

arch/blackfin/lib/string.c

@@ -121,7 +121,7 @@ static void dma_calc_size(unsigned long ldst, unsigned long lsrc, size_t count,
 	*dshift = WDSIZE_P;
 #endif
 
-	*bpos = min(limit, ffs(ldst | lsrc | count)) - 1;
+	*bpos = min(limit, (unsigned long)ffs(ldst | lsrc | count)) - 1;
 }
 
 /* This version misbehaves for count values of 0 and 2^16+.
@@ -157,7 +157,7 @@ void dma_memcpy_nocache(void *dst, const void *src, size_t count)
 
 #ifdef PSIZE
 	/* The max memory DMA peripheral transfer size is 4 bytes. */
-	dsize |= min(2, bpos) << PSIZE_P;
+	dsize |= min(2UL, bpos) << PSIZE_P;
 #endif
 
 	/* Copy sram functions from sdram to sram */

arch/powerpc/cpu/mpc85xx/tlb.c

@@ -300,7 +300,7 @@ unsigned int setup_ddr_tlbs_phys(phys_addr_t p_addr,
 	unsigned int ram_tlb_address = (unsigned int)CONFIG_SYS_DDR_SDRAM_BASE;
 	u64 memsize = (u64)memsize_in_meg << 20;
 
-	memsize = min(memsize, CONFIG_MAX_MEM_MAPPED);
+	memsize = min(memsize, (u64)CONFIG_MAX_MEM_MAPPED);
 	memsize = tlb_map_range(ram_tlb_address, p_addr, memsize, TLB_MAP_RAM);
 
 	if (memsize)

arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c

@@ -1661,7 +1661,7 @@ static void program_mode(unsigned long *dimm_populated,
 		for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) {
 			/* If a dimm is installed in a particular slot ... */
 			if (dimm_populated[dimm_num] != SDRAM_NONE)
-				t_wr_ns = max(t_wr_ns,
+				t_wr_ns = max(t_wr_ns, (unsigned long)
 					      spd_read(iic0_dimm_addr[dimm_num], 36) >> 2);
 		}
 
@@ -1838,12 +1838,18 @@ static void program_tr(unsigned long *dimm_populated,
 			else
 				sdram_ddr1 = false;
 
-			t_rcd_ns = max(t_rcd_ns, spd_read(iic0_dimm_addr[dimm_num], 29) >> 2);
-			t_rrd_ns = max(t_rrd_ns, spd_read(iic0_dimm_addr[dimm_num], 28) >> 2);
-			t_rp_ns  = max(t_rp_ns,  spd_read(iic0_dimm_addr[dimm_num], 27) >> 2);
-			t_ras_ns = max(t_ras_ns, spd_read(iic0_dimm_addr[dimm_num], 30));
-			t_rc_ns  = max(t_rc_ns,  spd_read(iic0_dimm_addr[dimm_num], 41));
-			t_rfc_ns = max(t_rfc_ns, spd_read(iic0_dimm_addr[dimm_num], 42));
+			t_rcd_ns = max(t_rcd_ns,
+				       (unsigned long)spd_read(iic0_dimm_addr[dimm_num], 29) >> 2);
+			t_rrd_ns = max(t_rrd_ns,
+				       (unsigned long)spd_read(iic0_dimm_addr[dimm_num], 28) >> 2);
+			t_rp_ns  = max(t_rp_ns,
+				       (unsigned long)spd_read(iic0_dimm_addr[dimm_num], 27) >> 2);
+			t_ras_ns = max(t_ras_ns,
+				       (unsigned long)spd_read(iic0_dimm_addr[dimm_num], 30));
+			t_rc_ns  = max(t_rc_ns,
+				       (unsigned long)spd_read(iic0_dimm_addr[dimm_num], 41));
+			t_rfc_ns = max(t_rfc_ns,
+				       (unsigned long)spd_read(iic0_dimm_addr[dimm_num], 42));
 		}
 	}
 
@@ -1916,9 +1922,12 @@ static void program_tr(unsigned long *dimm_populated,
 		for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) {
 			/* If a dimm is installed in a particular slot ... */
 			if (dimm_populated[dimm_num] != SDRAM_NONE) {
-				t_wpc_ns = max(t_wtr_ns, spd_read(iic0_dimm_addr[dimm_num], 36) >> 2);
-				t_wtr_ns = max(t_wtr_ns, spd_read(iic0_dimm_addr[dimm_num], 37) >> 2);
-				t_rpc_ns = max(t_rpc_ns, spd_read(iic0_dimm_addr[dimm_num], 38) >> 2);
+				t_wpc_ns = max(t_wtr_ns,
+					       (unsigned long)spd_read(iic0_dimm_addr[dimm_num], 36) >> 2);
+				t_wtr_ns = max(t_wtr_ns,
+					       (unsigned long)spd_read(iic0_dimm_addr[dimm_num], 37) >> 2);
+				t_rpc_ns = max(t_rpc_ns,
+					       (unsigned long)spd_read(iic0_dimm_addr[dimm_num], 38) >> 2);
 			}
 		}
 
@@ -2314,7 +2323,8 @@ static void program_ecc(unsigned long *dimm_populated,
 	for (dimm_num = 0; dimm_num < MAXDIMMS; dimm_num++) {
 		/* If a dimm is installed in a particular slot ... */
 		if (dimm_populated[dimm_num] != SDRAM_NONE)
-			ecc = max(ecc, spd_read(iic0_dimm_addr[dimm_num], 11));
+			ecc = max(ecc,
+				  (unsigned long)spd_read(iic0_dimm_addr[dimm_num], 11));
 	}
 	if (ecc == 0)
 		return;

arch/powerpc/lib/bootm.c

@@ -126,7 +126,7 @@ void arch_lmb_reserve(struct lmb *lmb)
 #endif
 
 	size = min(bootm_size, get_effective_memsize());
-	size = min(size, CONFIG_SYS_LINUX_LOWMEM_MAX_SIZE);
+	size = min(size, (ulong)CONFIG_SYS_LINUX_LOWMEM_MAX_SIZE);
 
 	if (size < bootm_size) {
 		ulong base = bootmap_base + size;

arch/sandbox/cpu/start.c

@@ -39,7 +39,7 @@ int sandbox_early_getopt_check(void)
 
 	max_arg_len = 0;
 	for (i = 0; i < num_options; ++i)
-		max_arg_len = max(strlen(sb_opt[i]->flag), max_arg_len);
+		max_arg_len = max((int)strlen(sb_opt[i]->flag), max_arg_len);
 	max_noarg_len = max_arg_len + 7;
 
 	for (i = 0; i < num_options; ++i) {

arch/x86/cpu/coreboot/pci.c

@@ -20,7 +20,7 @@ static void config_pci_bridge(struct pci_controller *hose, pci_dev_t dev,
 {
 	u8 secondary;
 	hose->read_byte(hose, dev, PCI_SECONDARY_BUS, &secondary);
-	hose->last_busno = max(hose->last_busno, secondary);
+	hose->last_busno = max(hose->last_busno, (int)secondary);
 	pci_hose_scan_bus(hose, secondary);
 }
 

arch/x86/cpu/coreboot/sdram.c

@@ -22,7 +22,7 @@ unsigned install_e820_map(unsigned max_entries, struct e820entry *entries)
 {
 	int i;
 
-	unsigned num_entries = min(lib_sysinfo.n_memranges, max_entries);
+	unsigned num_entries = min((unsigned)lib_sysinfo.n_memranges, max_entries);
 	if (num_entries < lib_sysinfo.n_memranges) {
 		printf("Warning: Limiting e820 map to %d entries.\n",
 			num_entries);

board/freescale/common/sys_eeprom.c

@@ -114,7 +114,7 @@ static void show_eeprom(void)
 		e.date[3] & 0x80 ? "PM" : "");
 
 	/* Show MAC addresses  */
-	for (i = 0; i < min(e.mac_count, MAX_NUM_PORTS); i++) {
+	for (i = 0; i < min(e.mac_count, (u8)MAX_NUM_PORTS); i++) {
 
 		u8 *p = e.mac[i];
 
@@ -223,7 +223,7 @@ static int prog_eeprom(void)
 	 */
 	for (i = 0, p = &e; i < sizeof(e); i += 8, p += 8) {
 		ret = i2c_write(CONFIG_SYS_I2C_EEPROM_ADDR, i, CONFIG_SYS_I2C_EEPROM_ADDR_LEN,
-			p, min((sizeof(e) - i), 8));
+				p, min((int)(sizeof(e) - i), 8));
 		if (ret)
 			break;
 		udelay(5000);	/* 5ms write cycle timing */
@@ -461,7 +461,7 @@ int mac_read_from_eeprom(void)
 		memset(e.mac[8], 0xff, 6);
 #endif
 
-	for (i = 0; i < min(e.mac_count, MAX_NUM_PORTS); i++) {
+	for (i = 0; i < min(e.mac_count, (u8)MAX_NUM_PORTS); i++) {
 		if (memcmp(&e.mac[i], "\0\0\0\0\0\0", 6) &&
 		    memcmp(&e.mac[i], "\xFF\xFF\xFF\xFF\xFF\xFF", 6)) {
 			char ethaddr[18];

board/gdsys/p1022/controlcenterd-id.c

@@ -236,7 +236,7 @@ static int ccdm_mmc_read(struct mmc *mmc, u64 src, u8 *dst, int size)
 			tmp_buf);
 		if (!n)
 			goto failure;
-		result = min(size, blk_len - ofs);
+		result = min(size, (int)(blk_len - ofs));
 		memcpy(dst, tmp_buf + ofs, result);
 		dst += result;
 		size -= result;
@@ -736,7 +736,8 @@ do_bin_func:
 				src_buf = buf;
 				for (ptr = (uint8_t *)src_buf, i = 20; i > 0;
 					i -= data_size, ptr += data_size)
-					memcpy(ptr, data, min(i, data_size));
+					memcpy(ptr, data,
+					       min_t(size_t, i, data_size));
 			}
 		}
 		bin_func(dst_reg->digest, src_buf, 20);

board/imgtec/malta/malta.c

@@ -37,7 +37,7 @@ static void malta_lcd_puts(const char *str)
 	void *reg = (void *)CKSEG1ADDR(MALTA_ASCIIPOS0);
 
 	/* print up to 8 characters of the string */
-	for (i = 0; i < min(strlen(str), 8); i++) {
+	for (i = 0; i < min((int)strlen(str), 8); i++) {
 		__raw_writel(str[i], reg);
 		reg += MALTA_ASCIIPOS1 - MALTA_ASCIIPOS0;
 	}

common/cmd_elf.c

@@ -210,9 +210,9 @@ int do_bootvx(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	 */
 	bootline = getenv("bootargs");
 	if (bootline) {
-		memcpy((void *) bootaddr, bootline,
-			max(strlen(bootline), 255));
-		flush_cache(bootaddr, max(strlen(bootline), 255));
+		memcpy((void *)bootaddr, bootline,
+		       max(strlen(bootline), (size_t)255));
+		flush_cache(bootaddr, max(strlen(bootline), (size_t)255));
 	} else {
 		sprintf(build_buf, CONFIG_SYS_VXWORKS_BOOT_DEVICE);
 		tmp = getenv("bootfile");
@@ -240,9 +240,9 @@ int do_bootvx(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 			 CONFIG_SYS_VXWORKS_ADD_PARAMS);
 #endif
 
-		memcpy((void *) bootaddr, build_buf,
-			max(strlen(build_buf), 255));
-		flush_cache(bootaddr, max(strlen(build_buf), 255));
+		memcpy((void *)bootaddr, build_buf,
+		       max(strlen(build_buf), (size_t)255));
+		flush_cache(bootaddr, max(strlen(build_buf), (size_t)255));
 	}
 
 	/*

common/cmd_sf.c

@@ -18,7 +18,6 @@
 
 static struct spi_flash *flash;
 
-
 /*
  * This function computes the length argument for the erase command.
  * The length on which the command is to operate can be given in two forms:
@@ -71,9 +70,9 @@ static ulong bytes_per_second(unsigned int len, ulong start_ms)
 {
 	/* less accurate but avoids overflow */
 	if (len >= ((unsigned int) -1) / 1024)
-		return len / (max(get_timer(start_ms) / 1024, 1));
+		return len / (max(get_timer(start_ms) / 1024, 1UL));
 	else
-		return 1024 * len / max(get_timer(start_ms), 1);
+		return 1024 * len / max(get_timer(start_ms), 1UL);
 }
 
 static int do_spi_flash_probe(int argc, char * const argv[])
@@ -223,7 +222,7 @@ static int spi_flash_update(struct spi_flash *flash, u32 offset,
 		ulong last_update = get_timer(0);
 
 		for (; buf < end && !err_oper; buf += todo, offset += todo) {
-			todo = min(end - buf, flash->sector_size);
+			todo = min_t(size_t, end - buf, flash->sector_size);
 			if (get_timer(last_update) > 100) {
 				printf("   \rUpdating, %zu%% %lu B/s",
 				       100 - (end - buf) / scale,
@@ -421,7 +420,8 @@ static int spi_flash_test(struct spi_flash *flash, uint8_t *buf, ulong len,
 	for (i = 0; i < len; i++) {
 		if (vbuf[i] != 0xff) {
 			printf("Check failed at %d\n", i);
-			print_buffer(i, vbuf + i, 1, min(len - i, 0x40), 0);
+			print_buffer(i, vbuf + i, 1,
+				     min_t(uint, len - i, 0x40), 0);
 			return -1;
 		}
 	}
@@ -443,9 +443,11 @@ static int spi_flash_test(struct spi_flash *flash, uint8_t *buf, ulong len,
 	for (i = 0; i < len; i++) {
 		if (buf[i] != vbuf[i]) {
 			printf("Verify failed at %d, good data:\n", i);
-			print_buffer(i, buf + i, 1, min(len - i, 0x40), 0);
+			print_buffer(i, buf + i, 1,
+				     min_t(uint, len - i, 0x40), 0);
 			printf("Bad data:\n");
-			print_buffer(i, vbuf + i, 1, min(len - i, 0x40), 0);
+			print_buffer(i, vbuf + i, 1,
+				     min_t(uint, len - i, 0x40), 0);
 			return -1;
 		}
 	}

common/env_nand.c

@@ -132,7 +132,7 @@ static int writeenv(size_t offset, u_char *buf)
 	u_char *char_ptr;
 
 	blocksize = nand_info[0].erasesize;
-	len = min(blocksize, CONFIG_ENV_SIZE);
+	len = min(blocksize, (size_t)CONFIG_ENV_SIZE);
 
 	while (amount_saved < CONFIG_ENV_SIZE && offset < end) {
 		if (nand_block_isbad(&nand_info[0], offset)) {
@@ -244,7 +244,7 @@ static int readenv(size_t offset, u_char *buf)
 	if (!blocksize)
 		return 1;
 
-	len = min(blocksize, CONFIG_ENV_SIZE);
+	len = min(blocksize, (size_t)CONFIG_ENV_SIZE);
 
 	while (amount_loaded < CONFIG_ENV_SIZE && offset < end) {
 		if (nand_block_isbad(&nand_info[0], offset)) {

common/fdt_support.c

@@ -1199,7 +1199,8 @@ int fdt_node_offset_by_compat_reg(void *blob, const char *compat,
  */
 int fdt_alloc_phandle(void *blob)
 {
-	int offset, phandle = 0;
+	int offset;
+	uint32_t phandle = 0;
 
 	for (offset = fdt_next_node(blob, -1, NULL); offset >= 0;
 	     offset = fdt_next_node(blob, offset, NULL)) {

common/lcd.c

@@ -746,7 +746,7 @@ static void splash_align_axis(int *axis, unsigned long panel_size,
 	else
 		return;
 
-	*axis = max(0, axis_alignment);
+	*axis = max(0, (int)axis_alignment);
 }
 #endif
 
@@ -1145,8 +1145,8 @@ U_BOOT_ENV_CALLBACK(splashimage, on_splashimage);
 
 void lcd_position_cursor(unsigned col, unsigned row)
 {
-	console_col = min(col, CONSOLE_COLS - 1);
-	console_row = min(row, CONSOLE_ROWS - 1);
+	console_col = min_t(short, col, CONSOLE_COLS - 1);
+	console_row = min_t(short, row, CONSOLE_ROWS - 1);
 }
 
 int lcd_get_pixel_width(void)

common/usb_hub.c

@@ -300,7 +300,8 @@ static int usb_hub_configure(struct usb_device *dev)
 	}
 	descriptor = (struct usb_hub_descriptor *)buffer;
 
-	length = min(descriptor->bLength, sizeof(struct usb_hub_descriptor));
+	length = min_t(int, descriptor->bLength,
+		       sizeof(struct usb_hub_descriptor));
 
 	if (usb_get_hub_descriptor(dev, buffer, length) < 0) {
 		debug("usb_hub_configure: failed to get hub " \

drivers/block/ahci.c

@@ -730,7 +730,7 @@ static int ata_scsiop_read_write(ccb *pccb, u8 is_write)
 		u16 now_blocks; /* number of blocks per iteration */
 		u32 transfer_size; /* number of bytes per iteration */
 
-		now_blocks = min(MAX_SATA_BLOCKS_READ_WRITE, blocks);
+		now_blocks = min((u16)MAX_SATA_BLOCKS_READ_WRITE, blocks);
 
 		transfer_size = ATA_SECT_SIZE * now_blocks;
 		if (transfer_size > user_buffer_size) {

drivers/ddr/fsl/ctrl_regs.c

@@ -303,7 +303,7 @@ static void set_timing_cfg_0(fsl_ddr_cfg_regs_t *ddr,
 
 #ifdef CONFIG_SYS_FSL_DDR4
 	/* tXP=max(4nCK, 6ns) */
-	int txp = max(mclk_ps * 4, 6000); /* unit=ps */
+	int txp = max((int)mclk_ps * 4, 6000); /* unit=ps */
 	trwt_mclk = 2;
 	twrt_mclk = 1;
 	act_pd_exit_mclk = picos_to_mclk(txp);
@@ -312,7 +312,7 @@ static void set_timing_cfg_0(fsl_ddr_cfg_regs_t *ddr,
 	 * MRS_CYC = max(tMRD, tMOD)
 	 * tMRD = 8nCK, tMOD = max(24nCK, 15ns)
 	 */
-	tmrd_mclk = max(24, picos_to_mclk(15000));
+	tmrd_mclk = max(24U, picos_to_mclk(15000));
 #elif defined(CONFIG_SYS_FSL_DDR3)
 	unsigned int data_rate = get_ddr_freq(0);
 	int txp;
@@ -325,7 +325,7 @@ static void set_timing_cfg_0(fsl_ddr_cfg_regs_t *ddr,
 	 * spec has not the tAXPD, we use
 	 * tAXPD=1, need design to confirm.
 	 */
-	txp = max(mclk_ps * 3, (mclk_ps > 1540 ? 7500 : 6000));
+	txp = max((int)mclk_ps * 3, (mclk_ps > 1540 ? 7500 : 6000));
 
 	tmrd_mclk = 4;
 	/* set the turnaround time */
@@ -511,8 +511,8 @@ static void set_timing_cfg_1(fsl_ddr_cfg_regs_t *ddr,
 #ifdef CONFIG_SYS_FSL_DDR4
 	refrec_ctrl = picos_to_mclk(common_dimm->trfc1_ps) - 8;
 	wrrec_mclk = picos_to_mclk(common_dimm->twr_ps);
-	acttoact_mclk = max(picos_to_mclk(common_dimm->trrds_ps), 4);
-	wrtord_mclk = max(2, picos_to_mclk(2500));
+	acttoact_mclk = max(picos_to_mclk(common_dimm->trrds_ps), 4U);
+	wrtord_mclk = max(2U, picos_to_mclk(2500));
 	if ((wrrec_mclk < 1) || (wrrec_mclk > 24))
 		printf("Error: WRREC doesn't support %d clocks\n", wrrec_mclk);
 	else
@@ -627,14 +627,14 @@ static void set_timing_cfg_2(fsl_ddr_cfg_regs_t *ddr,
 	wr_data_delay = popts->write_data_delay;
 #ifdef CONFIG_SYS_FSL_DDR4
 	cpo = 0;
-	cke_pls = max(3, picos_to_mclk(5000));
+	cke_pls = max(3U, picos_to_mclk(5000));
 #elif defined(CONFIG_SYS_FSL_DDR3)
 	/*
 	 * cke pulse = max(3nCK, 7.5ns) for DDR3-800
 	 *             max(3nCK, 5.625ns) for DDR3-1066, 1333
 	 *             max(3nCK, 5ns) for DDR3-1600, 1866, 2133
 	 */
-	cke_pls = max(3, picos_to_mclk(mclk_ps > 1870 ? 7500 :
+	cke_pls = max(3U, picos_to_mclk(mclk_ps > 1870 ? 7500 :
 				       (mclk_ps > 1245 ? 5625 : 5000)));
 #else
 	cke_pls = FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR;
@@ -1810,9 +1810,9 @@ static void set_timing_cfg_7(fsl_ddr_cfg_regs_t *ddr,
 	unsigned int txpr, tcksre, tcksrx;
 	unsigned int cke_rst, cksre, cksrx, par_lat, cs_to_cmd;
 
-	txpr = max(5, picos_to_mclk(common_dimm->trfc1_ps + 10000));
-	tcksre = max(5, picos_to_mclk(10000));
-	tcksrx = max(5, picos_to_mclk(10000));
+	txpr = max(5U, picos_to_mclk(common_dimm->trfc1_ps + 10000));
+	tcksre = max(5U, picos_to_mclk(10000));
+	tcksrx = max(5U, picos_to_mclk(10000));
 	par_lat = 0;
 	cs_to_cmd = 0;
 
@@ -1877,7 +1877,7 @@ static void set_timing_cfg_8(fsl_ddr_cfg_regs_t *ddr,
 	}
 
 	acttoact_bg = picos_to_mclk(common_dimm->trrdl_ps);
-	wrtord_bg = max(4, picos_to_mclk(7500));
+	wrtord_bg = max(4U, picos_to_mclk(7500));
 	if (popts->otf_burst_chop_en)
 		wrtord_bg += 2;
 

drivers/ddr/fsl/lc_common_dimm_params.c

@@ -289,48 +289,58 @@ compute_lowest_common_dimm_parameters(const dimm_params_t *dimm_params,
 		 * Find minimum tckmax_ps to find fastest slow speed,
 		 * i.e., this is the slowest the whole system can go.
 		 */
-		tckmax_ps = min(tckmax_ps, dimm_params[i].tckmax_ps);
+		tckmax_ps = min(tckmax_ps,
+				(unsigned int)dimm_params[i].tckmax_ps);
 #if defined(CONFIG_SYS_FSL_DDR3) || defined(CONFIG_SYS_FSL_DDR4)
-		taamin_ps = max(taamin_ps, dimm_params[i].taa_ps);
+		taamin_ps = max(taamin_ps,
+				(unsigned int)dimm_params[i].taa_ps);
 #endif
-		tckmin_x_ps = max(tckmin_x_ps, dimm_params[i].tckmin_x_ps);
-		trcd_ps = max(trcd_ps, dimm_params[i].trcd_ps);
-		trp_ps = max(trp_ps, dimm_params[i].trp_ps);
-		tras_ps = max(tras_ps, dimm_params[i].tras_ps);
+		tckmin_x_ps = max(tckmin_x_ps,
+				  (unsigned int)dimm_params[i].tckmin_x_ps);
+		trcd_ps = max(trcd_ps, (unsigned int)dimm_params[i].trcd_ps);
+		trp_ps = max(trp_ps, (unsigned int)dimm_params[i].trp_ps);
+		tras_ps = max(tras_ps, (unsigned int)dimm_params[i].tras_ps);
 #ifdef CONFIG_SYS_FSL_DDR4
-		trfc1_ps = max(trfc1_ps, dimm_params[i].trfc1_ps);
-		trfc2_ps = max(trfc2_ps, dimm_params[i].trfc2_ps);
-		trfc4_ps = max(trfc4_ps, dimm_params[i].trfc4_ps);
-		trrds_ps = max(trrds_ps, dimm_params[i].trrds_ps);
-		trrdl_ps = max(trrdl_ps, dimm_params[i].trrdl_ps);
-		tccdl_ps = max(tccdl_ps, dimm_params[i].tccdl_ps);
+		trfc1_ps = max(trfc1_ps,
+			       (unsigned int)dimm_params[i].trfc1_ps);
+		trfc2_ps = max(trfc2_ps,
+			       (unsigned int)dimm_params[i].trfc2_ps);
+		trfc4_ps = max(trfc4_ps,
+			       (unsigned int)dimm_params[i].trfc4_ps);
+		trrds_ps = max(trrds_ps,
+			       (unsigned int)dimm_params[i].trrds_ps);
+		trrdl_ps = max(trrdl_ps,
+			       (unsigned int)dimm_params[i].trrdl_ps);
+		tccdl_ps = max(tccdl_ps,
+			       (unsigned int)dimm_params[i].tccdl_ps);
 #else
-		twr_ps = max(twr_ps, dimm_params[i].twr_ps);
-		twtr_ps = max(twtr_ps, dimm_params[i].twtr_ps);
-		trfc_ps = max(trfc_ps, dimm_params[i].trfc_ps);
-		trrd_ps = max(trrd_ps, dimm_params[i].trrd_ps);
-		trtp_ps = max(trtp_ps, dimm_params[i].trtp_ps);
+		twr_ps = max(twr_ps, (unsigned int)dimm_params[i].twr_ps);
+		twtr_ps = max(twtr_ps, (unsigned int)dimm_params[i].twtr_ps);
+		trfc_ps = max(trfc_ps, (unsigned int)dimm_params[i].trfc_ps);
+		trrd_ps = max(trrd_ps, (unsigned int)dimm_params[i].trrd_ps);
+		trtp_ps = max(trtp_ps, (unsigned int)dimm_params[i].trtp_ps);
 #endif
-		trc_ps = max(trc_ps, dimm_params[i].trc_ps);
+		trc_ps = max(trc_ps, (unsigned int)dimm_params[i].trc_ps);
 #if defined(CONFIG_SYS_FSL_DDR1) || defined(CONFIG_SYS_FSL_DDR2)
-		tis_ps = max(tis_ps, dimm_params[i].tis_ps);
-		tih_ps = max(tih_ps, dimm_params[i].tih_ps);
-		tds_ps = max(tds_ps, dimm_params[i].tds_ps);
-		tdh_ps = max(tdh_ps, dimm_params[i].tdh_ps);
-		tqhs_ps = max(tqhs_ps, dimm_params[i].tqhs_ps);
+		tis_ps = max(tis_ps, (unsigned int)dimm_params[i].tis_ps);
+		tih_ps = max(tih_ps, (unsigned int)dimm_params[i].tih_ps);
+		tds_ps = max(tds_ps, (unsigned int)dimm_params[i].tds_ps);
+		tdh_ps = max(tdh_ps, (unsigned int)dimm_params[i].tdh_ps);
+		tqhs_ps = max(tqhs_ps, (unsigned int)dimm_params[i].tqhs_ps);
 		/*
 		 * Find maximum tdqsq_max_ps to find slowest.
 		 *
 		 * FIXME: is finding the slowest value the correct
 		 * strategy for this parameter?
 		 */
-		tdqsq_max_ps = max(tdqsq_max_ps, dimm_params[i].tdqsq_max_ps);
+		tdqsq_max_ps = max(tdqsq_max_ps,
+				   (unsigned int)dimm_params[i].tdqsq_max_ps);
 #endif
 		refresh_rate_ps = max(refresh_rate_ps,
-				      dimm_params[i].refresh_rate_ps);
+				      (unsigned int)dimm_params[i].refresh_rate_ps);
 		/* extended_op_srt is either 0 or 1, 0 having priority */
 		extended_op_srt = min(extended_op_srt,
-				      dimm_params[i].extended_op_srt);
+				      (unsigned int)dimm_params[i].extended_op_srt);
 	}
 
 	outpdimm->ndimms_present = number_of_dimms - temp1;

drivers/ddr/fsl/main.c

@@ -106,7 +106,8 @@ static void __get_spd(generic_spd_eeprom_t *spd, u8 i2c_address)
 		i2c_write(SPD_SPA1_ADDRESS, 0, 1, &dummy, 1);
 		ret = i2c_read(i2c_address, 0, 1,
 			       (uchar *)((ulong)spd + 256),
-			       min(256, sizeof(generic_spd_eeprom_t) - 256));
+			       min(256,
+				   (int)sizeof(generic_spd_eeprom_t) - 256));
 	}
 #else
 	ret = i2c_read(i2c_address, 0, 1, (uchar *)spd,

drivers/dfu/dfu.c

@@ -289,7 +289,7 @@ static int dfu_read_buffer_fill(struct dfu_entity *dfu, void *buf, int size)
 	readn = 0;
 	while (size > 0) {
 		/* get chunk that can be read */
-		chunk = min(size, dfu->b_left);
+		chunk = min((long)size, dfu->b_left);
 		/* consume */
 		if (chunk > 0) {
 			memcpy(buf, dfu->i_buf, chunk);

drivers/i2c/fsl_i2c.c

@@ -127,7 +127,7 @@ static const struct {
 static unsigned int set_i2c_bus_speed(const struct fsl_i2c *dev,
 	unsigned int i2c_clk, unsigned int speed)
 {
-	unsigned short divider = min(i2c_clk / speed, (unsigned short) -1);
+	unsigned short divider = min(i2c_clk / speed, (unsigned int)USHRT_MAX);
 
 	/*
 	 * We want to choose an FDR/DFSR that generates an I2C bus speed that

drivers/misc/cros_ec_spi.c

@@ -143,7 +143,7 @@ int cros_ec_spi_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version,
 		return -1;
 	}
 
-	len = min(p[1], din_len);
+	len = min((int)p[1], din_len);
 	cros_ec_dump_data("in", -1, p, len + 3);
 
 	/* Response code is first byte of message */

drivers/mmc/fsl_esdhc.c

@@ -610,7 +610,7 @@ int fsl_esdhc_initialize(bd_t *bis, struct fsl_esdhc_cfg *cfg)
 #endif
 
 	cfg->cfg.f_min = 400000;
-	cfg->cfg.f_max = min(gd->arch.sdhc_clk, 52000000);
+	cfg->cfg.f_max = min(gd->arch.sdhc_clk, (u32)52000000);
 
 	cfg->cfg.b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
 

drivers/mmc/pxa_mmc_gen.c

@@ -197,7 +197,7 @@ static int pxa_mmc_do_read_xfer(struct mmc *mmc, struct mmc_data *data)
 	while (len) {
 		/* The controller has data ready */
 		if (readl(&regs->i_reg) & MMC_I_REG_RXFIFO_RD_REQ) {
-			size = min(len, PXAMMC_FIFO_SIZE);
+			size = min(len, (uint32_t)PXAMMC_FIFO_SIZE);
 			len -= size;
 			size /= 4;
 
@@ -233,14 +233,14 @@ static int pxa_mmc_do_write_xfer(struct mmc *mmc, struct mmc_data *data)
 	while (len) {
 		/* The controller is ready to receive data */
 		if (readl(&regs->i_reg) & MMC_I_REG_TXFIFO_WR_REQ) {
-			size = min(len, PXAMMC_FIFO_SIZE);
+			size = min(len, (uint32_t)PXAMMC_FIFO_SIZE);
 			len -= size;
 			size /= 4;
 
 			while (size--)
 				writel(*buf++, &regs->txfifo);
 
-			if (min(len, PXAMMC_FIFO_SIZE) < 32)
+			if (min(len, (uint32_t)PXAMMC_FIFO_SIZE) < 32)
 				writel(MMC_PRTBUF_BUF_PART_FULL, &regs->prtbuf);
 		}
 

drivers/mtd/nand/denali_spl.c

@@ -203,7 +203,7 @@ int nand_spl_load_image(uint32_t offs, unsigned int size, void *dst)
 			if (ret < 0)
 				return ret;
 
-			readlen = min(page_size - column, size);
+			readlen = min(page_size - column, (int)size);
 			memcpy(dst, page_buffer, readlen);
 
 			column = 0;

drivers/mtd/spi/sandbox.c

@@ -315,7 +315,7 @@ int sandbox_erase_part(struct sandbox_spi_flash *sbsf, int size)
 	int ret;
 
 	while (size > 0) {
-		todo = min(size, sizeof(sandbox_sf_0xff));
+		todo = min(size, (int)sizeof(sandbox_sf_0xff));
 		ret = os_write(sbsf->fd, sandbox_sf_0xff, todo);
 		if (ret != todo)
 			return ret;

drivers/mtd/spi/sf_ops.c

@@ -313,10 +313,11 @@ int spi_flash_cmd_write_ops(struct spi_flash *flash, u32 offset,
 			return ret;
 #endif
 		byte_addr = offset % page_size;
-		chunk_len = min(len - actual, page_size - byte_addr);
+		chunk_len = min(len - actual, (size_t)(page_size - byte_addr));
 
 		if (flash->spi->max_write_size)
-			chunk_len = min(chunk_len, flash->spi->max_write_size);
+			chunk_len = min(chunk_len,
+					(size_t)flash->spi->max_write_size);
 
 		spi_flash_addr(write_addr, cmd);
 

drivers/net/netconsole.c

@@ -256,7 +256,7 @@ static void nc_puts(struct stdio_dev *dev, const char *s)
 
 	len = strlen(s);
 	while (len) {
-		int send_len = min(len, sizeof(input_buffer));
+		int send_len = min(len, (int)sizeof(input_buffer));
 		nc_send_packet(s, send_len);
 		len -= send_len;
 		s += send_len;

drivers/pci/pci.c

@@ -662,13 +662,15 @@ int pci_hose_scan_bus(struct pci_controller *hose, int bus)
 #endif
 
 #ifdef CONFIG_PCI_PNP
-		sub_bus = max(pciauto_config_device(hose, dev), sub_bus);
+		sub_bus = max((unsigned int)pciauto_config_device(hose, dev),
+			      sub_bus);
 #else
 		cfg = pci_find_config(hose, class, vendor, device,
 				      PCI_BUS(dev), PCI_DEV(dev), PCI_FUNC(dev));
 		if (cfg) {
 			cfg->config_device(hose, dev, cfg);
-			sub_bus = max(sub_bus, hose->current_busno);
+			sub_bus = max(sub_bus,
+				      (unsigned int)hose->current_busno);
 		}
 #endif
 

drivers/pci/pci_auto.c

@@ -387,7 +387,7 @@ int pciauto_config_device(struct pci_controller *hose, pci_dev_t dev)
 		n = pci_hose_scan_bus(hose, hose->current_busno);
 
 		/* figure out the deepest we've gone for this leg */
-		sub_bus = max(n, sub_bus);
+		sub_bus = max((unsigned int)n, sub_bus);
 		pciauto_postscan_setup_bridge(hose, dev, sub_bus);
 
 		sub_bus = hose->current_busno;

drivers/serial/usbtty.c

@@ -882,7 +882,7 @@ static int write_buffer (circbuf_t * buf)
 			space_avail =
 				current_urb->buffer_length -
 				current_urb->actual_length;
-			popnum = min(space_avail, buf->size);
+			popnum = min(space_avail, (int)buf->size);
 			if (popnum == 0)
 				break;
 

drivers/spi/fsl_espi.c

@@ -273,7 +273,7 @@ int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *data_out,
 			spi_cs_deactivate(slave);
 			return 0;
 		}
-		buf_len = 2 * cmd_len + min(data_len, max_tran_len);
+		buf_len = 2 * cmd_len + min(data_len, (size_t)max_tran_len);
 		len = cmd_len + data_len;
 		rx_offset = cmd_len;
 		buffer = (unsigned char *)malloc(buf_len);
@@ -306,7 +306,7 @@ int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *data_out,
 		if (data_in)
 			din = buffer + rx_offset;
 		dout = buffer;
-		tran_len = min(data_len , max_tran_len);
+		tran_len = min(data_len, (size_t)max_tran_len);
 		num_blks = DIV_ROUND_UP(tran_len + cmd_len, 4);
 		num_bytes = (tran_len + cmd_len) % 4;
 		fsl->data_len = tran_len + cmd_len;

drivers/spi/mxc_spi.c

@@ -315,7 +315,7 @@ int spi_xchg_single(struct spi_slave *slave, unsigned int bitlen,
 		tmp = reg_read(&regs->rxdata);
 		data = cpu_to_be32(tmp);
 		debug("SPI Rx: 0x%x 0x%x\n", tmp, data);
-		cnt = min(nbytes, sizeof(data));
+		cnt = min_t(u32, nbytes, sizeof(data));
 		if (din) {
 			memcpy(din, &data, cnt);
 			din += cnt;

drivers/spi/spi-uclass.c

@@ -57,7 +57,7 @@ int spi_claim_bus(struct spi_slave *slave)
 	speed = slave->max_hz;
 	if (spi->max_hz) {
 		if (speed)
-			speed = min(speed, spi->max_hz);
+			speed = min(speed, (int)spi->max_hz);
 		else
 			speed = spi->max_hz;
 	}

drivers/tpm/tpm_tis_lpc.c

@@ -274,7 +274,7 @@ static u32 tis_senddata(const u8 * const data, u32 len)
 		 * changes to zero exactly after the last byte is fed into the
 		 * FIFO.
 		 */
-		count = min(burst, len - offset - 1);
+		count = min((u32)burst, len - offset - 1);
 		while (count--)
 			tpm_write_byte(data[offset++],
 				  &lpc_tpm_dev[locality].data);

drivers/usb/gadget/composite.c

@@ -743,8 +743,8 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
 			if (!gadget_is_dualspeed(gadget))
 				break;
 			device_qual(cdev);
-			value = min(w_length,
-				sizeof(struct usb_qualifier_descriptor));
+			value = min_t(int, w_length,
+				      sizeof(struct usb_qualifier_descriptor));
 			break;
 		case USB_DT_OTHER_SPEED_CONFIG:
 			if (!gadget_is_dualspeed(gadget))

drivers/usb/gadget/designware_udc.c

@@ -269,8 +269,8 @@ static void dw_write_noniso_tx_fifo(struct usb_endpoint_instance
 		UDCDBGA("urb->buffer %p, buffer_length %d, actual_length %d",
 			urb->buffer, urb->buffer_length, urb->actual_length);
 
-		last = min(urb->actual_length - endpoint->sent,
-			   endpoint->tx_packetSize);
+		last = min_t(u32, urb->actual_length - endpoint->sent,
+			     endpoint->tx_packetSize);
 
 		if (last) {
 			u8 *cp = urb->buffer + endpoint->sent;

drivers/usb/gadget/pxa27x_udc.c

@@ -65,7 +65,8 @@ static int udc_write_urb(struct usb_endpoint_instance *endpoint)
 	if (!urb || !urb->actual_length)
 		return -1;
 
-	n = min(urb->actual_length - endpoint->sent, endpoint->tx_packetSize);
+	n = min_t(unsigned int, urb->actual_length - endpoint->sent,
+		  endpoint->tx_packetSize);
 	if (n <= 0)
 		return -1;
 

drivers/usb/gadget/s3c_udc_otg_xfer_dma.c

@@ -97,8 +97,8 @@ static int setdma_rx(struct s3c_ep *ep, struct s3c_request *req)
 	u32 ep_num = ep_index(ep);
 
 	buf = req->req.buf + req->req.actual;
-	length = min(req->req.length - req->req.actual,
-		     ep_num ? DMA_BUFFER_SIZE : ep->ep.maxpacket);
+	length = min_t(u32, req->req.length - req->req.actual,
+		       ep_num ? DMA_BUFFER_SIZE : ep->ep.maxpacket);
 
 	ep->len = length;
 	ep->dma_buf = buf;

drivers/usb/host/dwc2.c

@@ -503,23 +503,23 @@ static int dwc_otg_submit_rh_msg_in_descriptor(struct usb_device *dev,
 	case 0:
 		switch (wValue & 0xff00) {
 		case 0x0100:	/* device descriptor */
-			len = min3(txlen, sizeof(root_hub_dev_des), wLength);
+			len = min3(txlen, (int)sizeof(root_hub_dev_des), (int)wLength);
 			memcpy(buffer, root_hub_dev_des, len);
 			break;
 		case 0x0200:	/* configuration descriptor */
-			len = min3(txlen, sizeof(root_hub_config_des), wLength);
+			len = min3(txlen, (int)sizeof(root_hub_config_des), (int)wLength);
 			memcpy(buffer, root_hub_config_des, len);
 			break;
 		case 0x0300:	/* string descriptors */
 			switch (wValue & 0xff) {
 			case 0x00:
-				len = min3(txlen, sizeof(root_hub_str_index0),
-					   wLength);
+				len = min3(txlen, (int)sizeof(root_hub_str_index0),
+					   (int)wLength);
 				memcpy(buffer, root_hub_str_index0, len);
 				break;
 			case 0x01:
-				len = min3(txlen, sizeof(root_hub_str_index1),
-					   wLength);
+				len = min3(txlen, (int)sizeof(root_hub_str_index1),
+					   (int)wLength);
 				memcpy(buffer, root_hub_str_index1, len);
 				break;
 			}
@@ -556,7 +556,7 @@ static int dwc_otg_submit_rh_msg_in_descriptor(struct usb_device *dev,
 			data[10] = data[9];
 		}
 
-		len = min3(txlen, data[0], wLength);
+		len = min3(txlen, (int)data[0], (int)wLength);
 		memcpy(buffer, data, len);
 		break;
 	default:

drivers/usb/host/ehci-hcd.c

@@ -910,7 +910,7 @@ ehci_submit_root(struct usb_device *dev, unsigned long pipe, void *buffer,
 	}
 
 	mdelay(1);
-	len = min3(srclen, le16_to_cpu(req->length), length);
+	len = min3(srclen, (int)le16_to_cpu(req->length), length);
 	if (srcptr != NULL && len > 0)
 		memcpy(buffer, srcptr, len);
 	else

drivers/usb/host/xhci-ring.c

@@ -511,7 +511,7 @@ static void record_transfer_result(struct usb_device *udev,
 				   union xhci_trb *event, int length)
 {
 	udev->act_len = min(length, length -
-		EVENT_TRB_LEN(le32_to_cpu(event->trans_event.transfer_len)));
+		(int)EVENT_TRB_LEN(le32_to_cpu(event->trans_event.transfer_len)));
 
 	switch (GET_COMP_CODE(le32_to_cpu(event->trans_event.transfer_len))) {
 	case COMP_SUCCESS:

drivers/usb/host/xhci.c

@@ -829,7 +829,7 @@ static int xhci_submit_root(struct usb_device *udev, unsigned long pipe,
 	debug("scrlen = %d\n req->length = %d\n",
 		srclen, le16_to_cpu(req->length));
 
-	len = min(srclen, le16_to_cpu(req->length));
+	len = min(srclen, (int)le16_to_cpu(req->length));
 
 	if (srcptr != NULL && len > 0)
 		memcpy(buffer, srcptr, len);

drivers/video/cfb_console.c

@@ -1541,14 +1541,14 @@ int video_display_bitmap(ulong bmp_image, int x, int y)
 
 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 	if (x == BMP_ALIGN_CENTER)
-		x = max(0, (VIDEO_VISIBLE_COLS - width) / 2);
+		x = max(0, (int)(VIDEO_VISIBLE_COLS - width) / 2);
 	else if (x < 0)
-		x = max(0, VIDEO_VISIBLE_COLS - width + x + 1);
+		x = max(0, (int)(VIDEO_VISIBLE_COLS - width + x + 1));
 
 	if (y == BMP_ALIGN_CENTER)
-		y = max(0, (VIDEO_VISIBLE_ROWS - height) / 2);
+		y = max(0, (int)(VIDEO_VISIBLE_ROWS - height) / 2);
 	else if (y < 0)
-		y = max(0, VIDEO_VISIBLE_ROWS - height + y + 1);
+		y = max(0, (int)(VIDEO_VISIBLE_ROWS - height + y + 1));
 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
 
 	/*
@@ -1874,14 +1874,14 @@ static void plot_logo_or_black(void *screen, int width, int x, int y, int black)
 
 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 	if (x == BMP_ALIGN_CENTER)
-		x = max(0, (VIDEO_VISIBLE_COLS - VIDEO_LOGO_WIDTH) / 2);
+		x = max(0, (int)(VIDEO_VISIBLE_COLS - VIDEO_LOGO_WIDTH) / 2);
 	else if (x < 0)
-		x = max(0, VIDEO_VISIBLE_COLS - VIDEO_LOGO_WIDTH + x + 1);
+		x = max(0, (int)(VIDEO_VISIBLE_COLS - VIDEO_LOGO_WIDTH + x + 1));
 
 	if (y == BMP_ALIGN_CENTER)
-		y = max(0, (VIDEO_VISIBLE_ROWS - VIDEO_LOGO_HEIGHT) / 2);
+		y = max(0, (int)(VIDEO_VISIBLE_ROWS - VIDEO_LOGO_HEIGHT) / 2);
 	else if (y < 0)
-		y = max(0, VIDEO_VISIBLE_ROWS - VIDEO_LOGO_HEIGHT + y + 1);
+		y = max(0, (int)(VIDEO_VISIBLE_ROWS - VIDEO_LOGO_HEIGHT + y + 1));
 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
 
 	dest = (unsigned char *)screen + (y * width  + x) * VIDEO_PIXEL_SIZE;
@@ -2028,7 +2028,7 @@ static void *video_logo(void)
 		 * we need to adjust the logo height
 		 */
 		if (video_logo_ypos == BMP_ALIGN_CENTER)
-			video_logo_height += max(0, (VIDEO_VISIBLE_ROWS - \
+			video_logo_height += max(0, (int)(VIDEO_VISIBLE_ROWS -
 						     VIDEO_LOGO_HEIGHT) / 2);
 		else if (video_logo_ypos > 0)
 			video_logo_height += video_logo_ypos;

fs/ext4/dev.c

@@ -73,6 +73,7 @@ int ext4fs_devread(lbaint_t sector, int byte_offset, int byte_len, char *buf)
 	debug(" <" LBAFU ", %d, %d>\n", sector, byte_offset, byte_len);
 
 	if (byte_offset != 0) {
+		int readlen;
 		/* read first part which isn't aligned with start of sector */
 		if (ext4fs_block_dev_desc->
 		    block_read(ext4fs_block_dev_desc->dev,
@@ -81,13 +82,11 @@ int ext4fs_devread(lbaint_t sector, int byte_offset, int byte_len, char *buf)
 			printf(" ** ext2fs_devread() read error **\n");
 			return 0;
 		}
-		memcpy(buf, sec_buf + byte_offset,
-			min(ext4fs_block_dev_desc->blksz
-			    - byte_offset, byte_len));
-		buf += min(ext4fs_block_dev_desc->blksz
-			   - byte_offset, byte_len);
-		byte_len -= min(ext4fs_block_dev_desc->blksz
-				- byte_offset, byte_len);
+		readlen = min((int)ext4fs_block_dev_desc->blksz - byte_offset,
+			      byte_len);
+		memcpy(buf, sec_buf + byte_offset, readlen);
+		buf += readlen;
+		byte_len -= readlen;
 		sector++;
 	}
 

fs/fat/fat.c

@@ -364,7 +364,7 @@ get_contents(fsdata *mydata, dir_entry *dentptr, unsigned long pos,
 
 	/* align to beginning of next cluster if any */
 	if (pos) {
-		actsize = min(filesize, bytesperclust);
+		actsize = min(filesize, (unsigned long)bytesperclust);
 		if (get_cluster(mydata, curclust, get_contents_vfatname_block,
 				(int)actsize) != 0) {
 			printf("Error reading cluster\n");

include/linux/kernel.h

@@ -150,26 +150,17 @@
 #define min(x, y) ({				\
 	typeof(x) _min1 = (x);			\
 	typeof(y) _min2 = (y);			\
+	(void) (&_min1 == &_min2);		\
 	_min1 < _min2 ? _min1 : _min2; })
 
 #define max(x, y) ({				\
 	typeof(x) _max1 = (x);			\
 	typeof(y) _max2 = (y);			\
+	(void) (&_max1 == &_max2);		\
 	_max1 > _max2 ? _max1 : _max2; })
 
-#define min3(x, y, z) ({			\
-	typeof(x) _min1 = (x);			\
-	typeof(y) _min2 = (y);			\
-	typeof(z) _min3 = (z);			\
-	_min1 < _min2 ? (_min1 < _min3 ? _min1 : _min3) : \
-		(_min2 < _min3 ? _min2 : _min3); })
-
-#define max3(x, y, z) ({			\
-	typeof(x) _max1 = (x);			\
-	typeof(y) _max2 = (y);			\
-	typeof(z) _max3 = (z);			\
-	_max1 > _max2 ? (_max1 > _max3 ? _max1 : _max3) : \
-		(_max2 > _max3 ? _max2 : _max3); })
+#define min3(x, y, z) min((typeof(x))min(x, y), z)
+#define max3(x, y, z) max((typeof(x))max(x, y), z)
 
 /**
  * min_not_zero - return the minimum that is _not_ zero, unless both are zero