diff options
| author |   Andrew Lunn <andrew@lunn.ch> | 2018-09-04 04:23:56 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-09-04 12:22:41 -0700 |
| commit | a33710bdb6b284f8f1e24f1119d167037b374ebb (patch) | |
| tree | 8732e6fef20d32540370f51d03d2dbf30eab76cb /drivers/net/phy/sfp.c | |
| parent | net: sched: action_ife: take reference to meta module (diff) | |
| download | linux-dev-a33710bdb6b284f8f1e24f1119d167037b374ebb.tar.xz linux-dev-a33710bdb6b284f8f1e24f1119d167037b374ebb.zip | |
net: phy: sfp: Handle unimplemented hwmon limits and alarms
Not all SFPs implement the registers containing sensor limits and
alarms. Luckily, there is a bit indicating if they are implemented or
not. Add checking for this bit, when deciding if the hwmon attributes
should be visible.
Fixes: 1323061a018a ("net: phy: sfp: Add HWMON support for module sensors")
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy/sfp.c')
| -rw-r--r-- | drivers/net/phy/sfp.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c index 4637d980310e..52fffb98fde9 100644 --- a/drivers/net/phy/sfp.c +++ b/drivers/net/phy/sfp.c @@ -398,7 +398,6 @@ static umode_t sfp_hwmon_is_visible(const void *data, switch (type) { case hwmon_temp: switch (attr) { - case hwmon_temp_input: case hwmon_temp_min_alarm: case hwmon_temp_max_alarm: case hwmon_temp_lcrit_alarm: @@ -407,13 +406,16 @@ static umode_t sfp_hwmon_is_visible(const void *data, case hwmon_temp_max: case hwmon_temp_lcrit: case hwmon_temp_crit: + if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) + return 0; + /* fall through */ + case hwmon_temp_input: return 0444; default: return 0; } case hwmon_in: switch (attr) { - case hwmon_in_input: case hwmon_in_min_alarm: case hwmon_in_max_alarm: case hwmon_in_lcrit_alarm: @@ -422,13 +424,16 @@ static umode_t sfp_hwmon_is_visible(const void *data, case hwmon_in_max: case hwmon_in_lcrit: case hwmon_in_crit: + if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) + return 0; + /* fall through */ + case hwmon_in_input: return 0444; default: return 0; } case hwmon_curr: switch (attr) { - case hwmon_curr_input: case hwmon_curr_min_alarm: case hwmon_curr_max_alarm: case hwmon_curr_lcrit_alarm: @@ -437,6 +442,10 @@ static umode_t sfp_hwmon_is_visible(const void *data, case hwmon_curr_max: case hwmon_curr_lcrit: case hwmon_curr_crit: + if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) + return 0; + /* fall through */ + case hwmon_curr_input: return 0444; default: return 0; @@ -452,7 +461,6 @@ static umode_t sfp_hwmon_is_visible(const void *data, channel == 1) return 0; switch (attr) { - case hwmon_power_input: case hwmon_power_min_alarm: case hwmon_power_max_alarm: case hwmon_power_lcrit_alarm: @@ -461,6 +469,10 @@ static umode_t sfp_hwmon_is_visible(const void *data, case hwmon_power_max: case hwmon_power_lcrit: case hwmon_power_crit: + if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) + return 0; + /* fall through */ + case hwmon_power_input: return 0444; default: return 0; |