On Wednesday 28 November 2007 16:38:27 Larry Finger wrote:
> Since addition of the rfkill callback, the LED associated with the off/on
> switch on the radio has not worked because essential data in the rfkill
> structure is missing. When that problem was fixed, difficulties in circular
> locking surfaced. This patch fixes part of the regression in that the LED
> is turned on if the radio switch is on at startup. Adding the code to toggle
> the LED with the switch will be more involved and would likely miss the 2.6.24
> window.
>
> Signed-off-by: Larry Finger <[EMAIL PROTECTED]>
> ---
>
> John and Michael,
>
> I was able to get the full functionality working, but with two significant
> problems: (1) the LED toggled only with a switch off-on sequence, not with
> each switch change and (2) the module would no longer unload cleanly due to
> circular locking. I will be essentually off-line after today, and I hope that
> this hack, which will make the LED appear to work correctly, can be pushed
> into 2.6.24 as it is a fix, but has minimal code impact. Nearly all of the
> changes are needed just to make the LED on routine available to startup.
> Furthermore, I'm certain these changes will be needed when the complete fix
> is available.
That completely shortcuts the "behaviour" logic.
This patch trades one bug for another.
It will get other people upset, because their LEDs don't work as expected
anymore.
This is not a showstopper bug and there is no need to introduce dirty
fixes that trade one bug for another.
I'm pretty sure that this patch will break LEDs on my asus card. I didn't
try that, though.
Please don't apply this. We have enough time to develop the correct solution
to this problem.
> leds.c | 3 +--
> leds.h | 1 +
> main.c | 3 +++
> 3 files changed, 5 insertions(+), 2 deletions(-)
>
> Index: wireless-2.6/drivers/net/wireless/b43/main.c
> ===================================================================
> --- wireless-2.6.orig/drivers/net/wireless/b43/main.c
> +++ wireless-2.6/drivers/net/wireless/b43/main.c
> @@ -51,6 +51,7 @@
> #include "xmit.h"
> #include "lo.h"
> #include "pcmcia.h"
> +#include "leds.h"
>
> MODULE_DESCRIPTION("Broadcom B43 wireless driver");
> MODULE_AUTHOR("Martin Langer");
> @@ -2799,6 +2797,8 @@ static int b43_op_config(struct ieee8021
> b43_interrupt_enable(dev, savedirqs);
> mmiowb();
> spin_unlock_irqrestore(&wl->irq_lock, flags);
> + if (dev->radio_hw_enable)
> + b43_led_turn_on(dev, 1, 1);
> out_unlock_mutex:
> mutex_unlock(&wl->mutex);
>
> Index: wireless-2.6/drivers/net/wireless/b43/leds.c
> ===================================================================
> --- wireless-2.6.orig/drivers/net/wireless/b43/leds.c
> +++ wireless-2.6/drivers/net/wireless/b43/leds.c
> @@ -30,8 +30,7 @@
> #include "leds.h"
>
>
> -static void b43_led_turn_on(struct b43_wldev *dev, u8 led_index,
> - bool activelow)
> +void b43_led_turn_on(struct b43_wldev *dev, u8 led_index, bool activelow)
> {
> struct b43_wl *wl = dev->wl;
> unsigned long flags;
> Index: wireless-2.6/drivers/net/wireless/b43/leds.h
> ===================================================================
> --- wireless-2.6.orig/drivers/net/wireless/b43/leds.h
> +++ wireless-2.6/drivers/net/wireless/b43/leds.h
> @@ -44,6 +44,7 @@ enum b43_led_behaviour {
>
> void b43_leds_init(struct b43_wldev *dev);
> void b43_leds_exit(struct b43_wldev *dev);
> +void b43_led_turn_on(struct b43_wldev *dev, u8 led_index, bool activelow);
>
>
> #else /* CONFIG_B43_LEDS */
> _______________________________________________
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>
>
--
Greetings Michael.
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