diff options
| author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2025-05-25 18:53:31 +0200 |
|---|---|---|
| committer | Pratyush Yadav <pratyush@kernel.org> | 2025-07-03 16:50:21 +0200 |
| commit | d8b73ce1c5fc60cff8628d406caf7a5a5cecb1c7 (patch) | |
| tree | 4a28999ba742322da8170f312705092a783f762d | |
| parent | 19272b37aa4f83ca52bdf9c16d5d81bdd1354494 (diff) | |
mtd: spi-nor: Constify struct spi_nor_fixups
'struct spi_nor_fixups' are not modified in this driver.
Constifying these structures moves some data to a read-only section, so
increases overall security, especially when the structure holds some
function pointers.
On a x86_64, with allmodconfig, as an example:
Before:
======
text data bss dec hex filename
23304 13168 0 36472 8e78 drivers/mtd/spi-nor/micron-st.o
After:
=====
text data bss dec hex filename
23560 12912 0 36472 8e78 drivers/mtd/spi-nor/micron-st.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Pratyush Yadav <pratyush@kernel.org>
Signed-off-by: Pratyush Yadav <pratyush@kernel.org>
Link: https://lore.kernel.org/r/aa641732ba707ce3690217825c3ca7373ffde4f9.1748191985.git.christophe.jaillet@wanadoo.fr
| -rw-r--r-- | drivers/mtd/spi-nor/micron-st.c | 8 | ||||
| -rw-r--r-- | drivers/mtd/spi-nor/spansion.c | 4 |
2 files changed, 6 insertions, 6 deletions
diff --git a/drivers/mtd/spi-nor/micron-st.c b/drivers/mtd/spi-nor/micron-st.c index e6bab2d00c92..187239ccd549 100644 --- a/drivers/mtd/spi-nor/micron-st.c +++ b/drivers/mtd/spi-nor/micron-st.c @@ -189,7 +189,7 @@ static int mt25qu512a_post_bfpt_fixup(struct spi_nor *nor, return 0; } -static struct spi_nor_fixups mt25qu512a_fixups = { +static const struct spi_nor_fixups mt25qu512a_fixups = { .post_bfpt = mt25qu512a_post_bfpt_fixup, }; @@ -225,15 +225,15 @@ static int st_nor_two_die_late_init(struct spi_nor *nor) return spi_nor_set_4byte_addr_mode(nor, true); } -static struct spi_nor_fixups n25q00_fixups = { +static const struct spi_nor_fixups n25q00_fixups = { .late_init = st_nor_four_die_late_init, }; -static struct spi_nor_fixups mt25q01_fixups = { +static const struct spi_nor_fixups mt25q01_fixups = { .late_init = st_nor_two_die_late_init, }; -static struct spi_nor_fixups mt25q02_fixups = { +static const struct spi_nor_fixups mt25q02_fixups = { .late_init = st_nor_four_die_late_init, }; diff --git a/drivers/mtd/spi-nor/spansion.c b/drivers/mtd/spi-nor/spansion.c index bf08dbf5e742..920bb8dd5dc2 100644 --- a/drivers/mtd/spi-nor/spansion.c +++ b/drivers/mtd/spi-nor/spansion.c @@ -578,7 +578,7 @@ static int s25fs256t_late_init(struct spi_nor *nor) return 0; } -static struct spi_nor_fixups s25fs256t_fixups = { +static const struct spi_nor_fixups s25fs256t_fixups = { .post_bfpt = s25fs256t_post_bfpt_fixup, .post_sfdp = s25fs256t_post_sfdp_fixup, .late_init = s25fs256t_late_init, @@ -650,7 +650,7 @@ static int s25hx_t_late_init(struct spi_nor *nor) return 0; } -static struct spi_nor_fixups s25hx_t_fixups = { +static const struct spi_nor_fixups s25hx_t_fixups = { .post_bfpt = s25hx_t_post_bfpt_fixup, .post_sfdp = s25hx_t_post_sfdp_fixup, .late_init = s25hx_t_late_init, |