Make all warnings into errors.

Also fix a couple places where that makes it fail.

BUG=none
TEST=none

Change-Id: I3b434b4bfa547a579193aac67c1a9d440a2c4e51

4 files changed, 14 insertions, 15 deletions

diff --git a/Makefile.toolchain b/Makefile.toolchain
index 90a3ca4990..89977f5c78 100644
--- a/Makefile.toolchain
+++ b/Makefile.toolchain
@@ -17,7 +17,7 @@ OBJDUMP=$(CROSS_COMPILE)objdump
 BUILDCC?=gcc
 HOSTCC?=$(HOST_CROSS_COMPILE)gcc
 
-CFLAGS_WARN=-Wall -Wundef -Wstrict-prototypes -Wno-trigraphs              \
+CFLAGS_WARN=-Wall -Werror -Wundef -Wstrict-prototypes -Wno-trigraphs      \
             -fno-strict-aliasing -fno-common                              \
             -Werror-implicit-function-declaration -Wno-format-security    \
             -fno-delete-null-pointer-checks -Wdeclaration-after-statement \
diff --git a/chip/lm4/flash.c b/chip/lm4/flash.c
index 43f5d5923b..9d7d33f2ed 100644
--- a/chip/lm4/flash.c
+++ b/chip/lm4/flash.c
@@ -188,7 +188,7 @@ static int find_last_wp_block(void)
 	return -1;
 }
 
-static int get_wp_range(int *start, int *nblock)
+static int get_wp_range(uint32_t *start, uint32_t *nblock)
 {
 	int start_blk, end_blk;
 
@@ -204,8 +204,8 @@ static int get_wp_range(int *start, int *nblock)
 	/* TODO: Sanity check the shadow value? */
 
 	end_blk = find_last_wp_block();
-	*nblock = end_blk - start_blk + 1;
-	*start = start_blk;
+	*nblock = (uint32_t)(end_blk - start_blk + 1);
+	*start = (uint32_t)start_blk;
 	return EC_SUCCESS;
 }
 
@@ -225,9 +225,9 @@ static int set_wp_range(int start, int nblock)
 	return EC_SUCCESS;
 }
 
-int flash_get_write_protect_range(int *offset, int *size)
+int flash_get_write_protect_range(uint32_t *offset, uint32_t *size)
 {
-	int start, nblock;
+	uint32_t start, nblock;
 	int rv;
 
 	rv = get_wp_range(&start, &nblock);
@@ -239,13 +239,12 @@ int flash_get_write_protect_range(int *offset, int *size)
 	return EC_SUCCESS;
 }
 
-int flash_set_write_protect_range(int offset, int size)
+int flash_set_write_protect_range(uint32_t offset, uint32_t size)
 {
 	int start, nblock;
 	int rv;
 
-	if ((offset < 0) || (size < 0) || ((offset + size) >
-			(LM4_FLASH_FSIZE * FLASH_PROTECT_BYTES)))
+	if ((offset + size) > (LM4_FLASH_FSIZE * FLASH_PROTECT_BYTES))
 		return EC_ERROR_UNKNOWN; /* Invalid range */
 
 	rv = flash_get_write_protect_status();
@@ -272,7 +271,7 @@ int flash_set_write_protect_range(int offset, int size)
 
 int flash_get_write_protect_status(void)
 {
-	int start, nblock;
+	uint32_t start, nblock;
 	int rv;
 
 	rv = get_wp_range(&start, &nblock);
diff --git a/common/flash_commands.c b/common/flash_commands.c
index 000be73e20..6da536b40c 100644
--- a/common/flash_commands.c
+++ b/common/flash_commands.c
@@ -151,7 +151,7 @@ DECLARE_CONSOLE_COMMAND(flashwp, command_flash_wp);
 
 static int command_flash_wp_range(int argc, char **argv)
 {
-	int offset, size;
+	uint32_t offset, size;
 	char *endptr;
 	int rv;
 
@@ -167,12 +167,12 @@ static int command_flash_wp_range(int argc, char **argv)
 				LM4_FLASH_FMPPE0, LM4_FLASH_FMPPE1,
 				LM4_FLASH_FMPPE2, LM4_FLASH_FMPPE3);
 	} else {
-		offset = strtoi(argv[1], &endptr, 0);
+		offset = (uint32_t)strtoi(argv[1], &endptr, 0);
 		if (*endptr) {
 			uart_printf("Invalid offset \"%s\"\n", argv[1]);
 			return EC_ERROR_UNKNOWN;
 		}
-		size = strtoi(argv[2], &endptr, 0);
+		size = (uint32_t)strtoi(argv[2], &endptr, 0);
 		if (*endptr) {
 			uart_printf("Invalid size \"%s\"\n", argv[2]);
 			return EC_ERROR_UNKNOWN;
diff --git a/include/flash.h b/include/flash.h
index 38944e43cb..8b965d0147 100644
--- a/include/flash.h
+++ b/include/flash.h
@@ -68,8 +68,8 @@ int flash_erase(int offset, int size);
  * the write protect range is also locked, and may not be subsequently
  * altered until after a cold boot with the write protect pin
  * deasserted. */
-int flash_get_write_protect_range(int *offset, int *size);
-int flash_set_write_protect_range(int offset, int size);
+int flash_get_write_protect_range(uint32_t *offset, uint32_t *size);
+int flash_set_write_protect_range(uint32_t offset, uint32_t size);
 
 /* The write protect range has been stored into the chip registers
  * this boot.  The flash is write protected and the range cannot be