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Commit 869ab90f authored by Eric Biggers's avatar Eric Biggers Committed by Jens Axboe
Browse files

block: constify struct blk_integrity_profile 



blk_integrity_profile's are never modified, so mark them 'const' so that
they are placed in .rodata and benefit from memory protection.

Signed-off-by: default avatarEric Biggers <ebiggers@google.com>
Signed-off-by: default avatarJens Axboe <axboe@fb.com>
parent 1be7d207

block/blk-integrity.c

+1 −1
Original line number Diff line number Diff line
@@ -389,7 +389,7 @@ static int blk_integrity_nop_fn(struct blk_integrity_iter *iter) 
	return 0;

}



static struct blk_integrity_profile nop_profile = {

static const struct blk_integrity_profile nop_profile = {

	.name = "nop",

	.generate_fn = blk_integrity_nop_fn,

	.verify_fn = blk_integrity_nop_fn,

block/t10-pi.c

+4 −4
Original line number Diff line number Diff line
@@ -160,28 +160,28 @@ static int t10_pi_type3_verify_ip(struct blk_integrity_iter *iter) 
	return t10_pi_verify(iter, t10_pi_ip_fn, 3);

}



struct blk_integrity_profile t10_pi_type1_crc = {

const struct blk_integrity_profile t10_pi_type1_crc = {

	.name			= "T10-DIF-TYPE1-CRC",

	.generate_fn		= t10_pi_type1_generate_crc,

	.verify_fn		= t10_pi_type1_verify_crc,

};

EXPORT_SYMBOL(t10_pi_type1_crc);



struct blk_integrity_profile t10_pi_type1_ip = {

const struct blk_integrity_profile t10_pi_type1_ip = {

	.name			= "T10-DIF-TYPE1-IP",

	.generate_fn		= t10_pi_type1_generate_ip,

	.verify_fn		= t10_pi_type1_verify_ip,

};

EXPORT_SYMBOL(t10_pi_type1_ip);



struct blk_integrity_profile t10_pi_type3_crc = {

const struct blk_integrity_profile t10_pi_type3_crc = {

	.name			= "T10-DIF-TYPE3-CRC",

	.generate_fn		= t10_pi_type3_generate_crc,

	.verify_fn		= t10_pi_type3_verify_crc,

};

EXPORT_SYMBOL(t10_pi_type3_crc);



struct blk_integrity_profile t10_pi_type3_ip = {

const struct blk_integrity_profile t10_pi_type3_ip = {

	.name			= "T10-DIF-TYPE3-IP",

	.generate_fn		= t10_pi_type3_generate_ip,

	.verify_fn		= t10_pi_type3_verify_ip,

include/linux/genhd.h

+5 −5
Original line number Diff line number Diff line
@@ -159,7 +159,7 @@ struct badblocks; 
#if defined(CONFIG_BLK_DEV_INTEGRITY)



struct blk_integrity {

	struct blk_integrity_profile	*profile;

	const struct blk_integrity_profile	*profile;

	unsigned char				flags;

	unsigned char				tuple_size;

	unsigned char				interval_exp;

include/linux/t10-pi.h

+4 −4
Original line number Diff line number Diff line
@@ -34,9 +34,9 @@ struct t10_pi_tuple { 
};





extern struct blk_integrity_profile t10_pi_type1_crc;

extern struct blk_integrity_profile t10_pi_type1_ip;

extern struct blk_integrity_profile t10_pi_type3_crc;

extern struct blk_integrity_profile t10_pi_type3_ip;

extern const struct blk_integrity_profile t10_pi_type1_crc;

extern const struct blk_integrity_profile t10_pi_type1_ip;

extern const struct blk_integrity_profile t10_pi_type3_crc;

extern const struct blk_integrity_profile t10_pi_type3_ip;



#endif