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Commit 3faf9354 authored by Bhumika Goyal's avatar Bhumika Goyal Committed by Kees Cook
Browse files

pstore: constify pstore_zbackend structures 



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: default avatarBhumika Goyal <bhumirks@gmail.com>
Signed-off-by: default avatarKees Cook <keescook@chromium.org>
parent c1ae3cfa

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)