| Message ID | 20200414180105.20042-4-andrzej.p@collabora.com (mailing list archive) |
|---|---|
| State | RFC, archived |
| Headers | show |
| Series | Stop monitoring disabled devices | expand |
Hi Andrzej, you can drop this patch. It is not useful as the caller checks the correctness of the values in the patch 4/9. Moreover the patch is bogus because it returns before releasing the lock. On 14/04/2020 20:00, Andrzej Pietrasiewicz wrote: > Allow only THERMAL_DEVICE_ENABLED and THERMAL_DEVICE_DISABLED as valid > states to transition to. > Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com> > --- > drivers/net/ethernet/mellanox/mlxsw/core_thermal.c | 8 ++++++-- > drivers/platform/x86/acerhdf.c | 4 ++++ > drivers/thermal/imx_thermal.c | 4 +++- > drivers/thermal/intel/intel_quark_dts_thermal.c | 5 ++++- > drivers/thermal/of-thermal.c | 4 +++- > 5 files changed, 20 insertions(+), 5 deletions(-) > > diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c > index ce0a6837daa3..cd435ca7adbe 100644 > --- a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c > +++ b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c > @@ -296,8 +296,10 @@ static int mlxsw_thermal_set_mode(struct thermal_zone_device *tzdev, > > if (mode == THERMAL_DEVICE_ENABLED) > tzdev->polling_delay = thermal->polling_delay; > - else > + else if (mode == THERMAL_DEVICE_DISABLED) > tzdev->polling_delay = 0; > + else > + return -EINVAL; > > mutex_unlock(&tzdev->lock); > > @@ -486,8 +488,10 @@ static int mlxsw_thermal_module_mode_set(struct thermal_zone_device *tzdev, > > if (mode == THERMAL_DEVICE_ENABLED) > tzdev->polling_delay = thermal->polling_delay; > - else > + else if (mode == THERMAL_DEVICE_DISABLED) > tzdev->polling_delay = 0; > + else > + return -EINVAL; > > mutex_unlock(&tzdev->lock); > > diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c > index 8cc86f4e3ac1..d5188c1d688b 100644 > --- a/drivers/platform/x86/acerhdf.c > +++ b/drivers/platform/x86/acerhdf.c > @@ -431,6 +431,10 @@ static int acerhdf_get_mode(struct thermal_zone_device *thermal, > static int acerhdf_set_mode(struct thermal_zone_device *thermal, > enum thermal_device_mode mode) > { > + if (mode != THERMAL_DEVICE_DISABLED && > + mode != THERMAL_DEVICE_ENABLED) > + return -EINVAL; > + > if (mode == THERMAL_DEVICE_DISABLED && kernelmode) > acerhdf_revert_to_bios_mode(); > else if (mode == THERMAL_DEVICE_ENABLED && !kernelmode) > diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c > index e761c9b42217..36b1924f1938 100644 > --- a/drivers/thermal/imx_thermal.c > +++ b/drivers/thermal/imx_thermal.c > @@ -361,7 +361,7 @@ static int imx_set_mode(struct thermal_zone_device *tz, > data->irq_enabled = true; > enable_irq(data->irq); > } > - } else { > + } else if (mode == THERMAL_DEVICE_DISABLED) { > regmap_write(map, soc_data->sensor_ctrl + REG_CLR, > soc_data->measure_temp_mask); > regmap_write(map, soc_data->sensor_ctrl + REG_SET, > @@ -374,6 +374,8 @@ static int imx_set_mode(struct thermal_zone_device *tz, > disable_irq(data->irq); > data->irq_enabled = false; > } > + } else { > + return -EINVAL; > } > > data->mode = mode; > diff --git a/drivers/thermal/intel/intel_quark_dts_thermal.c b/drivers/thermal/intel/intel_quark_dts_thermal.c > index d704fc104cfd..11d7db895125 100644 > --- a/drivers/thermal/intel/intel_quark_dts_thermal.c > +++ b/drivers/thermal/intel/intel_quark_dts_thermal.c > @@ -325,8 +325,11 @@ static int sys_set_mode(struct thermal_zone_device *tzd, > mutex_lock(&dts_update_mutex); > if (mode == THERMAL_DEVICE_ENABLED) > ret = soc_dts_enable(tzd); > - else > + else if (mode == THERMAL_DEVICE_DISABLED) > ret = soc_dts_disable(tzd); > + else > + return -EINVAL; > + > mutex_unlock(&dts_update_mutex); > > return ret; > diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c > index 874a47d6923f..36bebf623980 100644 > --- a/drivers/thermal/of-thermal.c > +++ b/drivers/thermal/of-thermal.c > @@ -289,9 +289,11 @@ static int of_thermal_set_mode(struct thermal_zone_device *tz, > if (mode == THERMAL_DEVICE_ENABLED) { > tz->polling_delay = data->polling_delay; > tz->passive_delay = data->passive_delay; > - } else { > + } else if (mode == THERMAL_DEVICE_DISABLED) { > tz->polling_delay = 0; > tz->passive_delay = 0; > + } else { > + return -EINVAL; > } > > mutex_unlock(&tz->lock); >
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c index ce0a6837daa3..cd435ca7adbe 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c +++ b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c @@ -296,8 +296,10 @@ static int mlxsw_thermal_set_mode(struct thermal_zone_device *tzdev, if (mode == THERMAL_DEVICE_ENABLED) tzdev->polling_delay = thermal->polling_delay; - else + else if (mode == THERMAL_DEVICE_DISABLED) tzdev->polling_delay = 0; + else + return -EINVAL; mutex_unlock(&tzdev->lock); @@ -486,8 +488,10 @@ static int mlxsw_thermal_module_mode_set(struct thermal_zone_device *tzdev, if (mode == THERMAL_DEVICE_ENABLED) tzdev->polling_delay = thermal->polling_delay; - else + else if (mode == THERMAL_DEVICE_DISABLED) tzdev->polling_delay = 0; + else + return -EINVAL; mutex_unlock(&tzdev->lock); diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c index 8cc86f4e3ac1..d5188c1d688b 100644 --- a/drivers/platform/x86/acerhdf.c +++ b/drivers/platform/x86/acerhdf.c @@ -431,6 +431,10 @@ static int acerhdf_get_mode(struct thermal_zone_device *thermal, static int acerhdf_set_mode(struct thermal_zone_device *thermal, enum thermal_device_mode mode) { + if (mode != THERMAL_DEVICE_DISABLED && + mode != THERMAL_DEVICE_ENABLED) + return -EINVAL; + if (mode == THERMAL_DEVICE_DISABLED && kernelmode) acerhdf_revert_to_bios_mode(); else if (mode == THERMAL_DEVICE_ENABLED && !kernelmode) diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c index e761c9b42217..36b1924f1938 100644 --- a/drivers/thermal/imx_thermal.c +++ b/drivers/thermal/imx_thermal.c @@ -361,7 +361,7 @@ static int imx_set_mode(struct thermal_zone_device *tz, data->irq_enabled = true; enable_irq(data->irq); } - } else { + } else if (mode == THERMAL_DEVICE_DISABLED) { regmap_write(map, soc_data->sensor_ctrl + REG_CLR, soc_data->measure_temp_mask); regmap_write(map, soc_data->sensor_ctrl + REG_SET, @@ -374,6 +374,8 @@ static int imx_set_mode(struct thermal_zone_device *tz, disable_irq(data->irq); data->irq_enabled = false; } + } else { + return -EINVAL; } data->mode = mode; diff --git a/drivers/thermal/intel/intel_quark_dts_thermal.c b/drivers/thermal/intel/intel_quark_dts_thermal.c index d704fc104cfd..11d7db895125 100644 --- a/drivers/thermal/intel/intel_quark_dts_thermal.c +++ b/drivers/thermal/intel/intel_quark_dts_thermal.c @@ -325,8 +325,11 @@ static int sys_set_mode(struct thermal_zone_device *tzd, mutex_lock(&dts_update_mutex); if (mode == THERMAL_DEVICE_ENABLED) ret = soc_dts_enable(tzd); - else + else if (mode == THERMAL_DEVICE_DISABLED) ret = soc_dts_disable(tzd); + else + return -EINVAL; + mutex_unlock(&dts_update_mutex); return ret; diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c index 874a47d6923f..36bebf623980 100644 --- a/drivers/thermal/of-thermal.c +++ b/drivers/thermal/of-thermal.c @@ -289,9 +289,11 @@ static int of_thermal_set_mode(struct thermal_zone_device *tz, if (mode == THERMAL_DEVICE_ENABLED) { tz->polling_delay = data->polling_delay; tz->passive_delay = data->passive_delay; - } else { + } else if (mode == THERMAL_DEVICE_DISABLED) { tz->polling_delay = 0; tz->passive_delay = 0; + } else { + return -EINVAL; } mutex_unlock(&tz->lock);
Allow only THERMAL_DEVICE_ENABLED and THERMAL_DEVICE_DISABLED as valid states to transition to. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com> --- drivers/net/ethernet/mellanox/mlxsw/core_thermal.c | 8 ++++++-- drivers/platform/x86/acerhdf.c | 4 ++++ drivers/thermal/imx_thermal.c | 4 +++- drivers/thermal/intel/intel_quark_dts_thermal.c | 5 ++++- drivers/thermal/of-thermal.c | 4 +++- 5 files changed, 20 insertions(+), 5 deletions(-)