fastboot: sparse: resync common/image-sparse.c (part 2)

- update fastboot_okay() and fastboot_fail()

This file originally came from upstream code.

While retaining the storage abstraction feature, this is the second
set of the changes required to resync with the
  cmd_flash_mmc_sparse_img()
in the file
  aboot.c
from
  https://us.codeaurora.org/cgit/quic/la/kernel/lk/plain/app/aboot/aboot.c?h=LE.BR.1.2.1

Signed-off-by: Steve Rae <srae@broadcom.com>

common/fb_mmc.c

@@ -18,8 +18,6 @@
 #define CONFIG_FASTBOOT_GPT_NAME GPT_ENTRY_NAME
 #endif
 
-static char *response_str;
-
 struct fb_mmc_sparse {
 	struct blk_desc	*dev_desc;
 };
@@ -68,7 +66,7 @@ static void write_raw_image(struct blk_desc *dev_desc, disk_partition_t *info,
 
 	if (blkcnt > info->size) {
 		error("too large for partition: '%s'\n", part_name);
-		fastboot_fail(response_str, "too large for partition");
+		fastboot_fail("too large for partition");
 		return;
 	}
 
@@ -77,28 +75,25 @@ static void write_raw_image(struct blk_desc *dev_desc, disk_partition_t *info,
 	blks = blk_dwrite(dev_desc, info->start, blkcnt, buffer);
 	if (blks != blkcnt) {
 		error("failed writing to device %d\n", dev_desc->devnum);
-		fastboot_fail(response_str, "failed writing to device");
+		fastboot_fail("failed writing to device");
 		return;
 	}
 
 	printf("........ wrote " LBAFU " bytes to '%s'\n", blkcnt * info->blksz,
 	       part_name);
-	fastboot_okay(response_str, "");
+	fastboot_okay("");
 }
 
 void fb_mmc_flash_write(const char *cmd, void *download_buffer,
-			unsigned int download_bytes, char *response)
+			unsigned int download_bytes)
 {
 	struct blk_desc *dev_desc;
 	disk_partition_t info;
 
-	/* initialize the response buffer */
-	response_str = response;
-
 	dev_desc = blk_get_dev("mmc", CONFIG_FASTBOOT_FLASH_MMC_DEV);
 	if (!dev_desc || dev_desc->type == DEV_TYPE_UNKNOWN) {
 		error("invalid mmc device\n");
-		fastboot_fail(response_str, "invalid mmc device");
+		fastboot_fail("invalid mmc device");
 		return;
 	}
 
@@ -108,21 +103,21 @@ void fb_mmc_flash_write(const char *cmd, void *download_buffer,
 		if (is_valid_gpt_buf(dev_desc, download_buffer)) {
 			printf("%s: invalid GPT - refusing to write to flash\n",
 			       __func__);
-			fastboot_fail(response_str, "invalid GPT partition");
+			fastboot_fail("invalid GPT partition");
 			return;
 		}
 		if (write_mbr_and_gpt_partitions(dev_desc, download_buffer)) {
 			printf("%s: writing GPT partitions failed\n", __func__);
-			fastboot_fail(response_str,
+			fastboot_fail(
 				      "writing GPT partitions failed");
 			return;
 		}
 		printf("........ success\n");
-		fastboot_okay(response_str, "");
+		fastboot_okay("");
 		return;
 	} else if (part_get_info_efi_by_name_or_alias(dev_desc, cmd, &info)) {
 		error("cannot find partition: '%s'\n", cmd);
-		fastboot_fail(response_str, "cannot find partition");
+		fastboot_fail("cannot find partition");
 		return;
 	}
 
@@ -142,14 +137,14 @@ void fb_mmc_flash_write(const char *cmd, void *download_buffer,
 
 		sparse.priv = &sparse_priv;
 		write_sparse_image(&sparse, cmd, download_buffer,
-				   download_bytes, response_str);
+				   download_bytes);
 	} else {
 		write_raw_image(dev_desc, &info, cmd, download_buffer,
 				download_bytes);
 	}
 }
 
-void fb_mmc_erase(const char *cmd, char *response)
+void fb_mmc_erase(const char *cmd)
 {
 	int ret;
 	struct blk_desc *dev_desc;
@@ -159,24 +154,21 @@ void fb_mmc_erase(const char *cmd, char *response)
 
 	if (mmc == NULL) {
 		error("invalid mmc device");
-		fastboot_fail(response_str, "invalid mmc device");
+		fastboot_fail("invalid mmc device");
 		return;
 	}
 
-	/* initialize the response buffer */
-	response_str = response;
-
 	dev_desc = blk_get_dev("mmc", CONFIG_FASTBOOT_FLASH_MMC_DEV);
 	if (!dev_desc || dev_desc->type == DEV_TYPE_UNKNOWN) {
 		error("invalid mmc device");
-		fastboot_fail(response_str, "invalid mmc device");
+		fastboot_fail("invalid mmc device");
 		return;
 	}
 
 	ret = part_get_info_efi_by_name_or_alias(dev_desc, cmd, &info);
 	if (ret) {
 		error("cannot find partition: '%s'", cmd);
-		fastboot_fail(response_str, "cannot find partition");
+		fastboot_fail("cannot find partition");
 		return;
 	}
 
@@ -195,11 +187,11 @@ void fb_mmc_erase(const char *cmd, char *response)
 	blks = dev_desc->block_erase(dev_desc, blks_start, blks_size);
 	if (blks != blks_size) {
 		error("failed erasing from device %d", dev_desc->devnum);
-		fastboot_fail(response_str, "failed erasing from device");
+		fastboot_fail("failed erasing from device");
 		return;
 	}
 
 	printf("........ erased " LBAFU " bytes from '%s'\n",
 	       blks_size * info.blksz, cmd);
-	fastboot_okay(response_str, "");
+	fastboot_okay("");
 }