pstore: constify pstore_zbackend structures (3faf9354) · Commits · 戴 / test

The references of pstore_zbackend structures are stored into the pointer zbackend of type struct pstore_zbackend. The pointer zbackend can be made const as it is only dereferenced. After making this change the pstore_zbackend structures whose references are stored into the pointer zbackend can be made const too. File size before: text data bss dec hex filename 4817 541 172 5530 159a fs/pstore/platform.o File size after: text data bss dec hex filename 4865 477 172 5514 158a fs/pstore/platform.o Signed-off-by:

Bhumika Goyal <bhumirks@gmail.com> Signed-off-by:

Kees Cook <keescook@chromium.org>

fs/pstore/platform.c

+4 −4

Original line number	Diff line number	Diff line
		@@ -267,7 +267,7 @@ static void free_zlib(void)
		big_oops_buf_sz = 0;
		}

		static struct pstore_zbackend backend_zlib = {
		static const struct pstore_zbackend backend_zlib = {
		.compress = compress_zlib,
		.decompress = decompress_zlib,
		.allocate = allocate_zlib,
		@@ -328,7 +328,7 @@ static void free_lzo(void)
		big_oops_buf_sz = 0;
		}

		static struct pstore_zbackend backend_lzo = {
		static const struct pstore_zbackend backend_lzo = {
		.compress = compress_lzo,
		.decompress = decompress_lzo,
		.allocate = allocate_lzo,
		@@ -393,7 +393,7 @@ static void free_lz4(void)
		big_oops_buf_sz = 0;
		}

		static struct pstore_zbackend backend_lz4 = {
		static const struct pstore_zbackend backend_lz4 = {
		.compress = compress_lz4,
		.decompress = decompress_lz4,
		.allocate = allocate_lz4,
		@@ -402,7 +402,7 @@ static struct pstore_zbackend backend_lz4 = {
		};
		#endif

		static struct pstore_zbackend *zbackend =
		static const struct pstore_zbackend *zbackend =
		#if defined(CONFIG_PSTORE_ZLIB_COMPRESS)
		&backend_zlib;
		#elif defined(CONFIG_PSTORE_LZO_COMPRESS)

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