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net: dsa: lan9303: refactor lan9303_get_ethtool_stats 

In lan9303_get_ethtool_stats: Get rid of 0x400 constant magic
by using new lan9303_read_switch_reg() inside loop.
Reduced scope of two variables.

Signed-off-by: Egil Hjelmeland <privat@egil-hjelmeland.no>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Egil Hjelmeland 2017-08-05 13:05:50 +02:00 committed by David S. Miller
parent 9c84258ed6
commit 0a967b4a8e
1 changed files with 16 additions and 10 deletions
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26
drivers/net/dsa/lan9303-core.c
View File

@ -435,6 +435,13 @@ static int lan9303_write_switch_port(struct lan9303 *chip, int port,
chip, LAN9303_SWITCH_PORT_REG(port, regnum), val);
}
static int lan9303_read_switch_port(struct lan9303 *chip, int port,
u16 regnum, u32 *val)
{
return lan9303_read_switch_reg(
chip, LAN9303_SWITCH_PORT_REG(port, regnum), val);
}
static int lan9303_detect_phy_setup(struct lan9303 *chip)
{
int reg;
@ -705,19 +712,18 @@ static void lan9303_get_ethtool_stats(struct dsa_switch *ds, int port,
uint64_t *data)
{
struct lan9303 *chip = ds->priv;
u32 reg;
unsigned int u, poff;
int ret;
poff = port * 0x400;
unsigned int u;
for (u = 0; u < ARRAY_SIZE(lan9303_mib); u++) {
ret = lan9303_read_switch_reg(chip,
lan9303_mib[u].offset + poff,
&reg);
u32 reg;
int ret;
ret = lan9303_read_switch_port(
chip, port, lan9303_mib[u].offset, &reg);
if (ret)
dev_warn(chip->dev, "Reading status reg %u failed\n",
lan9303_mib[u].offset + poff);
dev_warn(chip->dev, "Reading status port %d reg %u failed\n",
port, lan9303_mib[u].offset);
data[u] = reg;
}
}