'struct lpphy_tx_gain_table_entry' are not modified in this driver.
Constifying this structure moves some data to a read-only section, so
increase overall security.
On a x86_64, with allmodconfig:
Before:
======
text data bss dec hex filename
16481 6232 0 22713 58b9 drivers/net/wireless/broadcom/b43/tables_lpphy.o
After:
=====
text data bss dec hex filename
22369 395 0 22764 58ec drivers/net/wireless/broadcom/b43/tables_lpphy.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
Compile tested-only.
lpphy_write_gain_table() and lpphy_write_gain_table_bulk() could also be
made static and removed from tables_lpphy.h, but without knowing the reason
why it is done this way, I've preferred to leave it as-is
---
.../net/wireless/broadcom/b43/tables_lpphy.c | 26 +++++++++----------
.../net/wireless/broadcom/b43/tables_lpphy.h | 4 +--
2 files changed, 15 insertions(+), 15 deletions(-)
diff --git a/drivers/net/wireless/broadcom/b43/tables_lpphy.c b/drivers/net/wireless/broadcom/b43/tables_lpphy.c
index 71a7cd8dc787..474cd37c3554 100644
--- a/drivers/net/wireless/broadcom/b43/tables_lpphy.c
+++ b/drivers/net/wireless/broadcom/b43/tables_lpphy.c
@@ -1066,7 +1066,7 @@ static const u32 lpphy_papd_mult_table[] = {
0x00036963, 0x000339f2, 0x00030a89, 0x0002db28,
};
-static struct lpphy_tx_gain_table_entry lpphy_rev0_nopa_tx_gain_table[] = {
+static const struct lpphy_tx_gain_table_entry lpphy_rev0_nopa_tx_gain_table[] = {
{ .gm = 7, .pga = 15, .pad = 14, .dac = 0, .bb_mult = 152, },
{ .gm = 7, .pga = 15, .pad = 14, .dac = 0, .bb_mult = 147, },
{ .gm = 7, .pga = 15, .pad = 14, .dac = 0, .bb_mult = 143, },
@@ -1197,7 +1197,7 @@ static struct lpphy_tx_gain_table_entry lpphy_rev0_nopa_tx_gain_table[] = {
{ .gm = 7, .pga = 11, .pad = 6, .dac = 0, .bb_mult = 71, },
};
-static struct lpphy_tx_gain_table_entry lpphy_rev0_2ghz_tx_gain_table[] = {
+static const struct lpphy_tx_gain_table_entry lpphy_rev0_2ghz_tx_gain_table[] = {
{ .gm = 4, .pga = 15, .pad = 9, .dac = 0, .bb_mult = 64, },
{ .gm = 4, .pga = 15, .pad = 9, .dac = 0, .bb_mult = 62, },
{ .gm = 4, .pga = 15, .pad = 9, .dac = 0, .bb_mult = 60, },
@@ -1328,7 +1328,7 @@ static struct lpphy_tx_gain_table_entry lpphy_rev0_2ghz_tx_gain_table[] = {
{ .gm = 4, .pga = 4, .pad = 2, .dac = 0, .bb_mult = 72, },
};
-static struct lpphy_tx_gain_table_entry lpphy_rev0_5ghz_tx_gain_table[] = {
+static const struct lpphy_tx_gain_table_entry lpphy_rev0_5ghz_tx_gain_table[] = {
{ .gm = 7, .pga = 15, .pad = 15, .dac = 0, .bb_mult = 99, },
{ .gm = 7, .pga = 15, .pad = 15, .dac = 0, .bb_mult = 96, },
{ .gm = 7, .pga = 15, .pad = 15, .dac = 0, .bb_mult = 93, },
@@ -1459,7 +1459,7 @@ static struct lpphy_tx_gain_table_entry lpphy_rev0_5ghz_tx_gain_table[] = {
{ .gm = 7, .pga = 11, .pad = 6, .dac = 0, .bb_mult = 60, },
};
-static struct lpphy_tx_gain_table_entry lpphy_rev1_nopa_tx_gain_table[] = {
+static const struct lpphy_tx_gain_table_entry lpphy_rev1_nopa_tx_gain_table[] = {
{ .gm = 7, .pga = 15, .pad = 14, .dac = 0, .bb_mult = 152, },
{ .gm = 7, .pga = 15, .pad = 14, .dac = 0, .bb_mult = 147, },
{ .gm = 7, .pga = 15, .pad = 14, .dac = 0, .bb_mult = 143, },
@@ -1599,7 +1599,7 @@ static struct lpphy_tx_gain_table_entry lpphy_rev1_nopa_tx_gain_table[] = {
{ .gm = 7, .pga = 11, .pad = 6, .dac = 0, .bb_mult = 71, },
};
-static struct lpphy_tx_gain_table_entry lpphy_rev1_2ghz_tx_gain_table[] = {
+static const struct lpphy_tx_gain_table_entry lpphy_rev1_2ghz_tx_gain_table[] = {
{ .gm = 4, .pga = 15, .pad = 15, .dac = 0, .bb_mult = 90, },
{ .gm = 4, .pga = 15, .pad = 15, .dac = 0, .bb_mult = 88, },
{ .gm = 4, .pga = 15, .pad = 15, .dac = 0, .bb_mult = 85, },
@@ -1730,7 +1730,7 @@ static struct lpphy_tx_gain_table_entry lpphy_rev1_2ghz_tx_gain_table[] = {
{ .gm = 4, .pga = 10, .pad = 6, .dac = 0, .bb_mult = 60, },
};
-static struct lpphy_tx_gain_table_entry lpphy_rev1_5ghz_tx_gain_table[] = {
+static const struct lpphy_tx_gain_table_entry lpphy_rev1_5ghz_tx_gain_table[] = {
{ .gm = 7, .pga = 15, .pad = 15, .dac = 0, .bb_mult = 99, },
{ .gm = 7, .pga = 15, .pad = 15, .dac = 0, .bb_mult = 96, },
{ .gm = 7, .pga = 15, .pad = 15, .dac = 0, .bb_mult = 93, },
@@ -1861,7 +1861,7 @@ static struct lpphy_tx_gain_table_entry lpphy_rev1_5ghz_tx_gain_table[] = {
{ .gm = 7, .pga = 11, .pad = 6, .dac = 0, .bb_mult = 60, },
};
-static struct lpphy_tx_gain_table_entry lpphy_rev2_nopa_tx_gain_table[] = {
+static const struct lpphy_tx_gain_table_entry lpphy_rev2_nopa_tx_gain_table[] = {
{ .gm = 255, .pga = 255, .pad = 203, .dac = 0, .bb_mult = 152, },
{ .gm = 255, .pga = 255, .pad = 203, .dac = 0, .bb_mult = 147, },
{ .gm = 255, .pga = 255, .pad = 203, .dac = 0, .bb_mult = 143, },
@@ -1992,7 +1992,7 @@ static struct lpphy_tx_gain_table_entry lpphy_rev2_nopa_tx_gain_table[] = {
{ .gm = 255, .pga = 111, .pad = 29, .dac = 0, .bb_mult = 64, },
};
-static struct lpphy_tx_gain_table_entry lpphy_rev2_2ghz_tx_gain_table[] = {
+static const struct lpphy_tx_gain_table_entry lpphy_rev2_2ghz_tx_gain_table[] = {
{ .gm = 7, .pga = 99, .pad = 255, .dac = 0, .bb_mult = 64, },
{ .gm = 7, .pga = 96, .pad = 255, .dac = 0, .bb_mult = 64, },
{ .gm = 7, .pga = 93, .pad = 255, .dac = 0, .bb_mult = 64, },
@@ -2123,7 +2123,7 @@ static struct lpphy_tx_gain_table_entry lpphy_rev2_2ghz_tx_gain_table[] = {
{ .gm = 7, .pga = 13, .pad = 52, .dac = 0, .bb_mult = 64, },
};
-static struct lpphy_tx_gain_table_entry lpphy_rev2_5ghz_tx_gain_table[] = {
+static const struct lpphy_tx_gain_table_entry lpphy_rev2_5ghz_tx_gain_table[] = {
{ .gm = 255, .pga = 255, .pad = 255, .dac = 0, .bb_mult = 152, },
{ .gm = 255, .pga = 255, .pad = 255, .dac = 0, .bb_mult = 147, },
{ .gm = 255, .pga = 255, .pad = 255, .dac = 0, .bb_mult = 143, },
@@ -2340,7 +2340,7 @@ void lpphy_rev2plus_table_init(struct b43_wldev *dev)
}
static void lpphy_rev0_1_write_gain_table(struct b43_wldev *dev, int offset,
- struct lpphy_tx_gain_table_entry data)
+ const struct lpphy_tx_gain_table_entry data)
{
u32 tmp;
@@ -2356,7 +2356,7 @@ static void lpphy_rev0_1_write_gain_table(struct b43_wldev *dev, int offset,
}
static void lpphy_rev2plus_write_gain_table(struct b43_wldev *dev, int offset,
- struct lpphy_tx_gain_table_entry data)
+ const struct lpphy_tx_gain_table_entry data)
{
u32 tmp;
@@ -2383,7 +2383,7 @@ static void lpphy_rev2plus_write_gain_table(struct b43_wldev *dev, int offset,
}
void lpphy_write_gain_table(struct b43_wldev *dev, int offset,
- struct lpphy_tx_gain_table_entry data)
+ const struct lpphy_tx_gain_table_entry data)
{
if (dev->phy.rev >= 2)
lpphy_rev2plus_write_gain_table(dev, offset, data);
@@ -2392,7 +2392,7 @@ void lpphy_write_gain_table(struct b43_wldev *dev, int offset,
}
void lpphy_write_gain_table_bulk(struct b43_wldev *dev, int offset, int count,
- struct lpphy_tx_gain_table_entry *table)
+ const struct lpphy_tx_gain_table_entry *table)
{
int i;
diff --git a/drivers/net/wireless/broadcom/b43/tables_lpphy.h b/drivers/net/wireless/broadcom/b43/tables_lpphy.h
index 62002098bbda..7d7af48c27da 100644
--- a/drivers/net/wireless/broadcom/b43/tables_lpphy.h
+++ b/drivers/net/wireless/broadcom/b43/tables_lpphy.h
@@ -34,9 +34,9 @@ struct lpphy_tx_gain_table_entry {
};
void lpphy_write_gain_table(struct b43_wldev *dev, int offset,
- struct lpphy_tx_gain_table_entry data);
+ const struct lpphy_tx_gain_table_entry data);
void lpphy_write_gain_table_bulk(struct b43_wldev *dev, int offset, int count,
- struct lpphy_tx_gain_table_entry *table);
+ const struct lpphy_tx_gain_table_entry *table);
void lpphy_rev0_1_table_init(struct b43_wldev *dev);
void lpphy_rev2plus_table_init(struct b43_wldev *dev);
--
2.45.2
