storage/stream_flash: Make context const where not modified

The commit sets const qualifier struct stream_flash_ctx *ctx parameter
of Stream Flash API calls:
  stream_flash_bytes_written
  stream_flash_progress_save
  stream_flash_progress_clear

Signed-off-by: Dominik Ermel <[email protected]>

Author: de-nordic

include/zephyr/storage/stream_flash.h

@@ -97,7 +97,7 @@ int stream_flash_init(struct stream_flash_ctx *ctx, const struct device *fdev,
  *
  * @return Number of payload bytes written to flash.
  */
-size_t stream_flash_bytes_written(struct stream_flash_ctx *ctx);
+size_t stream_flash_bytes_written(const struct stream_flash_ctx *ctx);
 
 /**
  * @brief Process input buffers to be written to flash device in single blocks.
@@ -164,7 +164,7 @@ int stream_flash_progress_load(struct stream_flash_ctx *ctx,
  *
  * @return non-negative on success, negative errno code on fail
  */
-int stream_flash_progress_save(struct stream_flash_ctx *ctx,
+int stream_flash_progress_save(const struct stream_flash_ctx *ctx,
 			       const char *settings_key);
 
 /**
@@ -176,7 +176,7 @@ int stream_flash_progress_save(struct stream_flash_ctx *ctx,
  *
  * @return non-negative on success, negative errno code on fail
  */
-int stream_flash_progress_clear(struct stream_flash_ctx *ctx,
+int stream_flash_progress_clear(const struct stream_flash_ctx *ctx,
 				const char *settings_key);
 
 #ifdef __cplusplus

subsys/storage/stream/stream_flash.c

@@ -237,7 +237,7 @@ int stream_flash_buffered_write(struct stream_flash_ctx *ctx, const uint8_t *dat
 	return rc;
 }
 
-size_t stream_flash_bytes_written(struct stream_flash_ctx *ctx)
+size_t stream_flash_bytes_written(const struct stream_flash_ctx *ctx)
 {
 	return ctx->bytes_written;
 }
@@ -348,7 +348,7 @@ int stream_flash_progress_load(struct stream_flash_ctx *ctx,
 	return rc;
 }
 
-int stream_flash_progress_save(struct stream_flash_ctx *ctx,
+int stream_flash_progress_save(const struct stream_flash_ctx *ctx,
 			       const char *settings_key)
 {
 	if (!ctx || !settings_key) {
@@ -367,7 +367,7 @@ int stream_flash_progress_save(struct stream_flash_ctx *ctx,
 	return rc;
 }
 
-int stream_flash_progress_clear(struct stream_flash_ctx *ctx,
+int stream_flash_progress_clear(const struct stream_flash_ctx *ctx,
 				const char *settings_key)
 {
 	if (!ctx || !settings_key) {