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| author | Inaky Perez-Gonzalez <inaky@linux.intel.com> | 2009-10-03 16:51:02 +0900 |
|---|---|---|
| committer | Inaky Perez-Gonzalez <inaky@linux.intel.com> | 2009-10-19 15:56:14 +0900 |
| commit | 81d3f905389e22bb9a5176b9309c3f451c260e1a (patch) | |
| tree | 8b7cc14d8c19d63f4d7a3e1d38cf49defc769620 /net/wimax/op-rfkill.c | |
| parent | de9315fa3a35ebe587cc1a1c88655d095846785e (diff) | |
| download | talos-obmc-linux-81d3f905389e22bb9a5176b9309c3f451c260e1a.tar.gz talos-obmc-linux-81d3f905389e22bb9a5176b9309c3f451c260e1a.zip | |
wimax: allow WIMAX_RF_QUERY calls when state is still uninitialized
Until now, calls to wimax_rfkill() will be blocked until the device is
at least past the WIMAX_ST_UNINITIALIZED state, return -ENOMEDIUM when
the device is in the WIMAX_ST_DOWN state.
In parallel, wimax-tools would issue a wimax_rfkill(WIMAX_RF_QUERY)
call right after opening a handle with wimaxll_open() as means to
verify if the interface is really a WiMAX interface [newer kernel
version will have a call specifically for this].
The combination of these two facts is that in some cases, before the
driver has finalized initializing its device's firmware, a
wimaxll_open() call would fail, when it should not.
Thus, change the wimax_rfkill() code to allow queries when the device
is in WIMAX_ST_UNINITIALIZED state.
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Diffstat (limited to 'net/wimax/op-rfkill.c')
| -rw-r--r-- | net/wimax/op-rfkill.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/net/wimax/op-rfkill.c b/net/wimax/op-rfkill.c index 40e1210cdbd8..94d339c345d2 100644 --- a/net/wimax/op-rfkill.c +++ b/net/wimax/op-rfkill.c @@ -305,8 +305,15 @@ int wimax_rfkill(struct wimax_dev *wimax_dev, enum wimax_rf_state state) d_fnstart(3, dev, "(wimax_dev %p state %u)\n", wimax_dev, state); mutex_lock(&wimax_dev->mutex); result = wimax_dev_is_ready(wimax_dev); - if (result < 0) + if (result < 0) { + /* While initializing, < 1.4.3 wimax-tools versions use + * this call to check if the device is a valid WiMAX + * device; so we allow it to proceed always, + * considering the radios are all off. */ + if (result == -ENOMEDIUM && state == WIMAX_RF_QUERY) + result = WIMAX_RF_OFF << 1 | WIMAX_RF_OFF; goto error_not_ready; + } switch (state) { case WIMAX_RF_ON: case WIMAX_RF_OFF: |
