diff --git a/arch/mips/alchemy/common/gpiolib.c b/arch/mips/alchemy/common/gpiolib.c
index a17d7a8909c4..1b16daaa86ae 100644
--- a/arch/mips/alchemy/common/gpiolib.c
+++ b/arch/mips/alchemy/common/gpiolib.c
@@ -31,7 +31,7 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
-#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
 #include <asm/mach-au1x00/gpio-au1000.h>
 #include <asm/mach-au1x00/gpio-au1300.h>
 
diff --git a/arch/mips/boot/compressed/decompress.c b/arch/mips/boot/compressed/decompress.c
index 5b38a802e101..c5dd415254d3 100644
--- a/arch/mips/boot/compressed/decompress.c
+++ b/arch/mips/boot/compressed/decompress.c
@@ -9,6 +9,7 @@
 
 #define DISABLE_BRANCH_PROFILING
 
+#define __NO_FORTIFY
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
diff --git a/arch/mips/include/asm/fw/fw.h b/arch/mips/include/asm/fw/fw.h
index d0ef8b4892bb..d0494ce4b337 100644
--- a/arch/mips/include/asm/fw/fw.h
+++ b/arch/mips/include/asm/fw/fw.h
@@ -26,6 +26,6 @@ extern char *fw_getcmdline(void);
 extern void fw_meminit(void);
 extern char *fw_getenv(char *name);
 extern unsigned long fw_getenvl(char *name);
-extern void fw_init_early_console(char port);
+extern void fw_init_early_console(void);
 
 #endif /* __ASM_FW_H_ */
diff --git a/arch/mips/kernel/jump_label.c b/arch/mips/kernel/jump_label.c
index 71a882c8c6eb..f7978d50a2ba 100644
--- a/arch/mips/kernel/jump_label.c
+++ b/arch/mips/kernel/jump_label.c
@@ -56,7 +56,7 @@ void arch_jump_label_transform(struct jump_entry *e,
 			 * The branch offset must fit in the instruction's 26
 			 * bit field.
 			 */
-			WARN_ON((offset >= BIT(25)) ||
+			WARN_ON((offset >= (long)BIT(25)) ||
 				(offset < -(long)BIT(25)));
 
 			insn.j_format.opcode = bc6_op;
diff --git a/arch/mips/kernel/relocate_kernel.S b/arch/mips/kernel/relocate_kernel.S
index cfde14b48fd8..f5b2ef979b43 100644
--- a/arch/mips/kernel/relocate_kernel.S
+++ b/arch/mips/kernel/relocate_kernel.S
@@ -145,8 +145,7 @@ LEAF(kexec_smp_wait)
  * kexec_args[0..3] are used to prepare register values.
  */
 
-kexec_args:
-	EXPORT(kexec_args)
+EXPORT(kexec_args)
 arg0:	PTR_WD		0x0
 arg1:	PTR_WD		0x0
 arg2:	PTR_WD		0x0
@@ -159,8 +158,7 @@ arg3:	PTR_WD		0x0
  * their registers a0-a3. secondary_kexec_args[0..3] are used
  * to prepare register values.
  */
-secondary_kexec_args:
-	EXPORT(secondary_kexec_args)
+EXPORT(secondary_kexec_args)
 s_arg0: PTR_WD		0x0
 s_arg1: PTR_WD		0x0
 s_arg2: PTR_WD		0x0
@@ -171,19 +169,16 @@ kexec_flag:
 
 #endif
 
-kexec_start_address:
-	EXPORT(kexec_start_address)
+EXPORT(kexec_start_address)
 	PTR_WD		0x0
 	.size		kexec_start_address, PTRSIZE
 
-kexec_indirection_page:
-	EXPORT(kexec_indirection_page)
+EXPORT(kexec_indirection_page)
 	PTR_WD		0
 	.size		kexec_indirection_page, PTRSIZE
 
 relocate_new_kernel_end:
 
-relocate_new_kernel_size:
-	EXPORT(relocate_new_kernel_size)
+EXPORT(relocate_new_kernel_size)
 	PTR_WD		relocate_new_kernel_end - relocate_new_kernel
 	.size		relocate_new_kernel_size, PTRSIZE
diff --git a/arch/mips/loongson64/reset.c b/arch/mips/loongson64/reset.c
index 758d5d26aaaa..e420800043b0 100644
--- a/arch/mips/loongson64/reset.c
+++ b/arch/mips/loongson64/reset.c
@@ -16,6 +16,7 @@
 #include <asm/bootinfo.h>
 #include <asm/idle.h>
 #include <asm/reboot.h>
+#include <asm/bug.h>
 
 #include <loongson.h>
 #include <boot_param.h>
@@ -159,8 +160,17 @@ static int __init mips_reboot_setup(void)
 
 #ifdef CONFIG_KEXEC
 	kexec_argv = kmalloc(KEXEC_ARGV_SIZE, GFP_KERNEL);
+	if (WARN_ON(!kexec_argv))
+		return -ENOMEM;
+
 	kdump_argv = kmalloc(KEXEC_ARGV_SIZE, GFP_KERNEL);
+	if (WARN_ON(!kdump_argv))
+		return -ENOMEM;
+
 	kexec_envp = kmalloc(KEXEC_ENVP_SIZE, GFP_KERNEL);
+	if (WARN_ON(!kexec_envp))
+		return -ENOMEM;
+
 	fw_arg1 = KEXEC_ARGV_ADDR;
 	memcpy(kexec_envp, (void *)fw_arg2, KEXEC_ENVP_SIZE);
 
diff --git a/arch/mips/pic32/pic32mzda/early_console.c b/arch/mips/pic32/pic32mzda/early_console.c
index 25372e62783b..3cd1b408fa1c 100644
--- a/arch/mips/pic32/pic32mzda/early_console.c
+++ b/arch/mips/pic32/pic32mzda/early_console.c
@@ -27,7 +27,7 @@
 #define U_BRG(x)	(UART_BASE(x) + 0x40)
 
 static void __iomem *uart_base;
-static char console_port = -1;
+static int console_port = -1;
 
 static int __init configure_uart_pins(int port)
 {
@@ -47,7 +47,7 @@ static int __init configure_uart_pins(int port)
 	return 0;
 }
 
-static void __init configure_uart(char port, int baud)
+static void __init configure_uart(int port, int baud)
 {
 	u32 pbclk;
 
@@ -60,7 +60,7 @@ static void __init configure_uart(char port, int baud)
 		     uart_base + PIC32_SET(U_STA(port)));
 }
 
-static void __init setup_early_console(char port, int baud)
+static void __init setup_early_console(int port, int baud)
 {
 	if (configure_uart_pins(port))
 		return;
@@ -130,16 +130,15 @@ _out:
 	return baud;
 }
 
-void __init fw_init_early_console(char port)
+void __init fw_init_early_console(void)
 {
 	char *arch_cmdline = pic32_getcmdline();
-	int baud = -1;
+	int baud, port;
 
 	uart_base = ioremap(PIC32_BASE_UART, 0xc00);
 
 	baud = get_baud_from_cmdline(arch_cmdline);
-	if (port == -1)
-		port = get_port_from_cmdline(arch_cmdline);
+	port = get_port_from_cmdline(arch_cmdline);
 
 	if (port == -1)
 		port = EARLY_CONSOLE_PORT;
diff --git a/arch/mips/pic32/pic32mzda/init.c b/arch/mips/pic32/pic32mzda/init.c
index 08c46cf122d7..53b227a9074c 100644
--- a/arch/mips/pic32/pic32mzda/init.c
+++ b/arch/mips/pic32/pic32mzda/init.c
@@ -47,7 +47,7 @@ void __init plat_mem_setup(void)
 		strscpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
 
 #ifdef CONFIG_EARLY_PRINTK
-	fw_init_early_console(-1);
+	fw_init_early_console();
 #endif
 	pic32_config_init();
 }