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net: dsa: use ethtool string helpers

Browse Source 
These are the preferred way to copy ethtool strings.

Avoids incrementing pointers all over the place.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
(for hellcreek driver)
Reviewed-by: Kurt Kanzenbach <kurt@linutronix.de>
Link: https://patch.msgid.link/20241028044828.1639668-1-rosenp@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Rosen Penev 2024-10-27 21:48:28 -07:00 committed by Jakub Kicinski
parent 574583c30c
commit f12b363887
15 changed files with 64 additions and 103 deletions
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3
drivers/net/dsa/b53/b53_common.c
View File

@ -989,8 +989,7 @@ void b53_get_strings(struct dsa_switch *ds, int port, u32 stringset,
if (stringset == ETH_SS_STATS) {
for (i = 0; i < mib_size; i++)
strscpy(data + i * ETH_GSTRING_LEN,
mibs[i].name, ETH_GSTRING_LEN);
ethtool_puts(&data, mibs[i].name);
} else if (stringset == ETH_SS_PHY_STATS) {
phydev = b53_get_phy_device(ds, port);
if (!phydev)

4
drivers/net/dsa/bcm_sf2.c
View File

@ -1183,8 +1183,8 @@ static void bcm_sf2_sw_get_strings(struct dsa_switch *ds, int port,
int cnt = b53_get_sset_count(ds, port, stringset);
b53_get_strings(ds, port, stringset, data);
bcm_sf2_cfp_get_strings(ds, port, stringset,
data + cnt * ETH_GSTRING_LEN);
data += cnt * ETH_GSTRING_LEN;
bcm_sf2_cfp_get_strings(ds, port, stringset, &data);
}
static void bcm_sf2_sw_get_ethtool_stats(struct dsa_switch *ds, int port,

4
drivers/net/dsa/bcm_sf2.h
View File

@ -228,8 +228,8 @@ int bcm_sf2_set_rxnfc(struct dsa_switch *ds, int port,
int bcm_sf2_cfp_rst(struct bcm_sf2_priv *priv);
void bcm_sf2_cfp_exit(struct dsa_switch *ds);
int bcm_sf2_cfp_resume(struct dsa_switch *ds);
void bcm_sf2_cfp_get_strings(struct dsa_switch *ds, int port,
u32 stringset, uint8_t *data);
void bcm_sf2_cfp_get_strings(struct dsa_switch *ds, int port, u32 stringset,
uint8_t **data);
void bcm_sf2_cfp_get_ethtool_stats(struct dsa_switch *ds, int port,
uint64_t *data);
int bcm_sf2_cfp_get_sset_count(struct dsa_switch *ds, int port, int sset);

22
drivers/net/dsa/bcm_sf2_cfp.c
View File

@ -1279,27 +1279,19 @@ static const struct bcm_sf2_cfp_stat {
},
};
void bcm_sf2_cfp_get_strings(struct dsa_switch *ds, int port,
u32 stringset, uint8_t *data)
void bcm_sf2_cfp_get_strings(struct dsa_switch *ds, int port, u32 stringset,
uint8_t **data)
{
struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
unsigned int s = ARRAY_SIZE(bcm_sf2_cfp_stats);
char buf[ETH_GSTRING_LEN];
unsigned int i, j, iter;
unsigned int i, j;
if (stringset != ETH_SS_STATS)
return;
for (i = 1; i < priv->num_cfp_rules; i++) {
for (j = 0; j < s; j++) {
snprintf(buf, sizeof(buf),
"CFP%03d_%sCntr",
i, bcm_sf2_cfp_stats[j].name);
iter = (i - 1) * s + j;
strscpy(data + iter * ETH_GSTRING_LEN,
buf, ETH_GSTRING_LEN);
}
}
for (i = 1; i < priv->num_cfp_rules; i++)
for (j = 0; j < ARRAY_SIZE(bcm_sf2_cfp_stats); j++)
ethtool_sprintf(data, "CFP%03d_%sCntr", i,
bcm_sf2_cfp_stats[j].name);
}
void bcm_sf2_cfp_get_ethtool_stats(struct dsa_switch *ds, int port,

3
drivers/net/dsa/dsa_loop.c
View File

@ -121,8 +121,7 @@ static void dsa_loop_get_strings(struct dsa_switch *ds, int port,
return;
for (i = 0; i < __DSA_LOOP_CNT_MAX; i++)
memcpy(data + i * ETH_GSTRING_LEN,
ps->ports[port].mib[i].name, ETH_GSTRING_LEN);
ethtool_puts(&data, ps->ports[port].mib[i].name);
}
static void dsa_loop_get_ethtool_stats(struct dsa_switch *ds, int port,

8
drivers/net/dsa/hirschmann/hellcreek.c
View File

@ -294,12 +294,8 @@ static void hellcreek_get_strings(struct dsa_switch *ds, int port,
{
int i;
for (i = 0; i < ARRAY_SIZE(hellcreek_counter); ++i) {
const struct hellcreek_counter *counter = &hellcreek_counter[i];
strscpy(data + i * ETH_GSTRING_LEN,
counter->name, ETH_GSTRING_LEN);
}
for (i = 0; i < ARRAY_SIZE(hellcreek_counter); ++i)
ethtool_puts(&data, hellcreek_counter[i].name);
}
static int hellcreek_get_sset_count(struct dsa_switch *ds, int port, int sset)

6
drivers/net/dsa/microchip/ksz_common.c
View File

@ -2112,10 +2112,8 @@ static void ksz_get_strings(struct dsa_switch *ds, int port,
if (stringset != ETH_SS_STATS)
return;
for (i = 0; i < dev->info->mib_cnt; i++) {
memcpy(buf + i * ETH_GSTRING_LEN,
dev->info->mib_names[i].string, ETH_GSTRING_LEN);
}
for (i = 0; i < dev->info->mib_cnt; i++)
ethtool_puts(&buf, dev->info->mib_names[i].string);
}
/**

57
drivers/net/dsa/mv88e6xxx/chip.c
View File

@ -1153,42 +1153,37 @@ static uint64_t _mv88e6xxx_get_ethtool_stat(struct mv88e6xxx_chip *chip,
return value;
}
static int mv88e6xxx_stats_get_strings(struct mv88e6xxx_chip *chip,
uint8_t *data, int types)
static void mv88e6xxx_stats_get_strings(struct mv88e6xxx_chip *chip,
uint8_t **data, int types)
{
const struct mv88e6xxx_hw_stat *stat;
int i, j;
int i;
for (i = 0, j = 0; i < ARRAY_SIZE(mv88e6xxx_hw_stats); i++) {
for (i = 0; i < ARRAY_SIZE(mv88e6xxx_hw_stats); i++) {
stat = &mv88e6xxx_hw_stats[i];
if (stat->type & types) {
memcpy(data + j * ETH_GSTRING_LEN, stat->string,
ETH_GSTRING_LEN);
j++;
}
if (stat->type & types)
ethtool_puts(data, stat->string);
}
return j;
}
static int mv88e6095_stats_get_strings(struct mv88e6xxx_chip *chip,
uint8_t *data)
static void mv88e6095_stats_get_strings(struct mv88e6xxx_chip *chip,
uint8_t **data)
{
return mv88e6xxx_stats_get_strings(chip, data,
STATS_TYPE_BANK0 | STATS_TYPE_PORT);
mv88e6xxx_stats_get_strings(chip, data,
STATS_TYPE_BANK0 | STATS_TYPE_PORT);
}
static int mv88e6250_stats_get_strings(struct mv88e6xxx_chip *chip,
uint8_t *data)
static void mv88e6250_stats_get_strings(struct mv88e6xxx_chip *chip,
uint8_t **data)
{
return mv88e6xxx_stats_get_strings(chip, data, STATS_TYPE_BANK0);
mv88e6xxx_stats_get_strings(chip, data, STATS_TYPE_BANK0);
}
static int mv88e6320_stats_get_strings(struct mv88e6xxx_chip *chip,
uint8_t *data)
static void mv88e6320_stats_get_strings(struct mv88e6xxx_chip *chip,
uint8_t **data)
{
return mv88e6xxx_stats_get_strings(chip, data,
STATS_TYPE_BANK0 | STATS_TYPE_BANK1);
mv88e6xxx_stats_get_strings(chip, data,
STATS_TYPE_BANK0 | STATS_TYPE_BANK1);
}
static const uint8_t *mv88e6xxx_atu_vtu_stats_strings[] = {
@ -1199,21 +1194,18 @@ static const uint8_t *mv88e6xxx_atu_vtu_stats_strings[] = {
"vtu_miss_violation",
};
static void mv88e6xxx_atu_vtu_get_strings(uint8_t *data)
static void mv88e6xxx_atu_vtu_get_strings(uint8_t **data)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(mv88e6xxx_atu_vtu_stats_strings); i++)
strscpy(data + i * ETH_GSTRING_LEN,
mv88e6xxx_atu_vtu_stats_strings[i],
ETH_GSTRING_LEN);
ethtool_puts(data, mv88e6xxx_atu_vtu_stats_strings[i]);
}
static void mv88e6xxx_get_strings(struct dsa_switch *ds, int port,
u32 stringset, uint8_t *data)
{
struct mv88e6xxx_chip *chip = ds->priv;
int count = 0;
if (stringset != ETH_SS_STATS)
return;
@ -1221,15 +1213,12 @@ static void mv88e6xxx_get_strings(struct dsa_switch *ds, int port,
mv88e6xxx_reg_lock(chip);
if (chip->info->ops->stats_get_strings)
count = chip->info->ops->stats_get_strings(chip, data);
chip->info->ops->stats_get_strings(chip, &data);
if (chip->info->ops->serdes_get_strings) {
data += count * ETH_GSTRING_LEN;
count = chip->info->ops->serdes_get_strings(chip, port, data);
}
if (chip->info->ops->serdes_get_strings)
chip->info->ops->serdes_get_strings(chip, port, &data);
data += count * ETH_GSTRING_LEN;
mv88e6xxx_atu_vtu_get_strings(data);
mv88e6xxx_atu_vtu_get_strings(&data);
mv88e6xxx_reg_unlock(chip);
}

6
drivers/net/dsa/mv88e6xxx/chip.h
View File

@ -606,7 +606,7 @@ struct mv88e6xxx_ops {
/* Return the number of strings describing statistics */
int (*stats_get_sset_count)(struct mv88e6xxx_chip *chip);
int (*stats_get_strings)(struct mv88e6xxx_chip *chip, uint8_t *data);
void (*stats_get_strings)(struct mv88e6xxx_chip *chip, uint8_t **data);
size_t (*stats_get_stat)(struct mv88e6xxx_chip *chip, int port,
const struct mv88e6xxx_hw_stat *stat,
uint64_t *data);
@ -633,8 +633,8 @@ struct mv88e6xxx_ops {
/* Statistics from the SERDES interface */
int (*serdes_get_sset_count)(struct mv88e6xxx_chip *chip, int port);
int (*serdes_get_strings)(struct mv88e6xxx_chip *chip, int port,
uint8_t *data);
int (*serdes_get_strings)(struct mv88e6xxx_chip *chip, int port,
uint8_t **data);
size_t (*serdes_get_stats)(struct mv88e6xxx_chip *chip, int port,
uint64_t *data);

14
drivers/net/dsa/mv88e6xxx/serdes.c
View File

@ -132,8 +132,8 @@ int mv88e6352_serdes_get_sset_count(struct mv88e6xxx_chip *chip, int port)
return ARRAY_SIZE(mv88e6352_serdes_hw_stats);
}
int mv88e6352_serdes_get_strings(struct mv88e6xxx_chip *chip,
int port, uint8_t *data)
int mv88e6352_serdes_get_strings(struct mv88e6xxx_chip *chip, int port,
uint8_t **data)
{
struct mv88e6352_serdes_hw_stat *stat;
int err, i;
@ -144,8 +144,7 @@ int mv88e6352_serdes_get_strings(struct mv88e6xxx_chip *chip,
for (i = 0; i < ARRAY_SIZE(mv88e6352_serdes_hw_stats); i++) {
stat = &mv88e6352_serdes_hw_stats[i];
memcpy(data + i * ETH_GSTRING_LEN, stat->string,
ETH_GSTRING_LEN);
ethtool_puts(data, stat->string);
}
return ARRAY_SIZE(mv88e6352_serdes_hw_stats);
}
@ -394,8 +393,8 @@ int mv88e6390_serdes_get_sset_count(struct mv88e6xxx_chip *chip, int port)
return ARRAY_SIZE(mv88e6390_serdes_hw_stats);
}
int mv88e6390_serdes_get_strings(struct mv88e6xxx_chip *chip,
int port, uint8_t *data)
int mv88e6390_serdes_get_strings(struct mv88e6xxx_chip *chip, int port,
uint8_t **data)
{
struct mv88e6390_serdes_hw_stat *stat;
int i;
@ -405,8 +404,7 @@ int mv88e6390_serdes_get_strings(struct mv88e6xxx_chip *chip,
for (i = 0; i < ARRAY_SIZE(mv88e6390_serdes_hw_stats); i++) {
stat = &mv88e6390_serdes_hw_stats[i];
memcpy(data + i * ETH_GSTRING_LEN, stat->string,
ETH_GSTRING_LEN);
ethtool_puts(data, stat->string);
}
return ARRAY_SIZE(mv88e6390_serdes_hw_stats);
}

8
drivers/net/dsa/mv88e6xxx/serdes.h
View File

@ -125,13 +125,13 @@ unsigned int mv88e6352_serdes_irq_mapping(struct mv88e6xxx_chip *chip,
unsigned int mv88e6390_serdes_irq_mapping(struct mv88e6xxx_chip *chip,
int port);
int mv88e6352_serdes_get_sset_count(struct mv88e6xxx_chip *chip, int port);
int mv88e6352_serdes_get_strings(struct mv88e6xxx_chip *chip,
int port, uint8_t *data);
int mv88e6352_serdes_get_strings(struct mv88e6xxx_chip *chip, int port,
uint8_t **data);
size_t mv88e6352_serdes_get_stats(struct mv88e6xxx_chip *chip, int port,
uint64_t *data);
int mv88e6390_serdes_get_sset_count(struct mv88e6xxx_chip *chip, int port);
int mv88e6390_serdes_get_strings(struct mv88e6xxx_chip *chip,
int port, uint8_t *data);
int mv88e6390_serdes_get_strings(struct mv88e6xxx_chip *chip, int port,
uint8_t **data);
size_t mv88e6390_serdes_get_stats(struct mv88e6xxx_chip *chip, int port,
uint64_t *data);

6
drivers/net/dsa/rzn1_a5psw.c
View File

@ -802,10 +802,8 @@ static void a5psw_get_strings(struct dsa_switch *ds, int port, u32 stringset,
if (stringset != ETH_SS_STATS)
return;
for (u = 0; u < ARRAY_SIZE(a5psw_stats); u++) {
memcpy(data + u * ETH_GSTRING_LEN, a5psw_stats[u].name,
ETH_GSTRING_LEN);
}
for (u = 0; u < ARRAY_SIZE(a5psw_stats); u++)
ethtool_puts(&data, a5psw_stats[u].name);
}
static void a5psw_get_ethtool_stats(struct dsa_switch *ds, int port,

7
drivers/net/dsa/sja1105/sja1105_ethtool.c
View File

@ -586,7 +586,6 @@ void sja1105_get_strings(struct dsa_switch *ds, int port,
{
struct sja1105_private *priv = ds->priv;
enum sja1105_counter_index max_ctr, i;
char *p = data;
if (stringset != ETH_SS_STATS)
return;
@ -597,10 +596,8 @@ void sja1105_get_strings(struct dsa_switch *ds, int port,
else
max_ctr = __MAX_SJA1105PQRS_PORT_COUNTER;
for (i = 0; i < max_ctr; i++) {
strscpy(p, sja1105_port_counters[i].name, ETH_GSTRING_LEN);
p += ETH_GSTRING_LEN;
}
for (i = 0; i < max_ctr; i++)
ethtool_puts(&data, sja1105_port_counters[i].name);
}
int sja1105_get_sset_count(struct dsa_switch *ds, int port, int sset)

6
drivers/net/dsa/xrs700x/xrs700x.c
View File

@ -91,10 +91,8 @@ static void xrs700x_get_strings(struct dsa_switch *ds, int port,
if (stringset != ETH_SS_STATS)
return;
for (i = 0; i < ARRAY_SIZE(xrs700x_mibs); i++) {
strscpy(data, xrs700x_mibs[i].name, ETH_GSTRING_LEN);
data += ETH_GSTRING_LEN;
}
for (i = 0; i < ARRAY_SIZE(xrs700x_mibs); i++)
ethtool_puts(&data, xrs700x_mibs[i].name);
}
static int xrs700x_get_sset_count(struct dsa_switch *ds, int port, int sset)

13
net/dsa/user.c
View File

@ -1042,15 +1042,12 @@ static void dsa_user_get_strings(struct net_device *dev,
struct dsa_switch *ds = dp->ds;
if (stringset == ETH_SS_STATS) {
int len = ETH_GSTRING_LEN;
strscpy_pad(data, "tx_packets", len);
strscpy_pad(data + len, "tx_bytes", len);
strscpy_pad(data + 2 * len, "rx_packets", len);
strscpy_pad(data + 3 * len, "rx_bytes", len);
ethtool_puts(&data, "tx_packets");
ethtool_puts(&data, "tx_bytes");
ethtool_puts(&data, "rx_packets");
ethtool_puts(&data, "rx_bytes");
if (ds->ops->get_strings)
ds->ops->get_strings(ds, dp->index, stringset,
data + 4 * len);
ds->ops->get_strings(ds, dp->index, stringset, data);
} else if (stringset == ETH_SS_TEST) {
net_selftest_get_strings(data);
}