diff --git a/boot/zephyr/flash_map.c b/boot/zephyr/flash_map.c
index 872c80d..17cb32a 100644
--- a/boot/zephyr/flash_map.c
+++ b/boot/zephyr/flash_map.c
@@ -61,7 +61,7 @@
 {
 	int i;
 
-	BOOT_LOG_DBG("%s: area %d", __func__, id);
+	BOOT_LOG_DBG("area %d", id);
 
 	for (i = 0; i < ARRAY_SIZE(part_map); i++) {
 		if (id == part_map[i].fa_id)
@@ -84,8 +84,7 @@
 int flash_area_read(const struct flash_area *area, uint32_t off, void *dst,
 		    uint32_t len)
 {
-	BOOT_LOG_DBG("%s: area=%d, off=%x, len=%x", __func__,
-		     area->fa_id, off, len);
+	BOOT_LOG_DBG("area=%d, off=%x, len=%x", area->fa_id, off, len);
 	return flash_read(boot_flash_device, area->fa_off + off, dst, len);
 }
 
@@ -94,8 +93,7 @@
 {
 	int rc = 0;
 
-	BOOT_LOG_DBG("%s: area=%d, off=%x, len=%x", __func__,
-		     area->fa_id, off, len);
+	BOOT_LOG_DBG("area=%d, off=%x, len=%x", area->fa_id, off, len);
 	flash_write_protection_set(boot_flash_device, false);
 	rc = flash_write(boot_flash_device, area->fa_off + off, src, len);
 	flash_write_protection_set(boot_flash_device, true);
@@ -106,8 +104,7 @@
 {
 	int rc;
 
-	BOOT_LOG_DBG("%s: area=%d, off=%x, len=%x", __func__,
-			area->fa_id, off, len);
+	BOOT_LOG_DBG("area=%d, off=%x, len=%x", area->fa_id, off, len);
 	flash_write_protection_set(boot_flash_device, false);
 	rc = flash_erase(boot_flash_device, area->fa_off + off, len);
 	flash_write_protection_set(boot_flash_device, true);
@@ -140,7 +137,7 @@
 	uint32_t len;
 	uint32_t max_cnt = *cnt;
 
-	BOOT_LOG_DBG("%s: lookup area %d", __func__, idx);
+	BOOT_LOG_DBG("lookup area %d", idx);
 	/*
 	 * This simple layout has uniform slots, so just fill in the
 	 * right one.
@@ -165,7 +162,7 @@
 		len = FLASH_AREA_IMAGE_SCRATCH_SIZE;
 		break;
 	default:
-		SYS_LOG_ERR("%s: unknown flash area %d", __func__, idx);
+		BOOT_LOG_ERR("unknown flash area %d", idx);
 		return -1;
 	}