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<H1>[Mageia-dev] kernel problem with wifi rfkill?</H1>
<B>Colin Guthrie</B>
<A HREF="mailto:mageia-dev%40mageia.org?Subject=Re%3A%20%5BMageia-dev%5D%20kernel%20problem%20with%20wifi%20rfkill%3F&In-Reply-To=%3C4DB007B6.4070705%40colin.guthr.ie%3E"
TITLE="[Mageia-dev] kernel problem with wifi rfkill?">mageia at colin.guthr.ie
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<I>Thu Apr 21 12:32:22 CEST 2011</I>
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<PRE>'Twas brillig, and Thomas Backlund at 21/04/11 11:07 did gyre and gimble:
>><i> iwlagn : Intel Corporation|PRO/Wireless 4965 AG or AGN [Kedron]
</I>>><i> Network Connection [NETWORK_OTHER] (vendor:8086 device:4229 subv:8086
</I>>><i> subd:1101) (rev: 61)
</I>>><i>
</I>><i>
</I>><i> I have this same, I'll test tonight/tomorrow...
</I>
Thanks.
>><i>
</I>>><i> I found this which seems like a likely candidate for a fix...
</I>>><i> <A HREF="http://ns.spinics.net/lists/linux-wireless/msg64176.html">http://ns.spinics.net/lists/linux-wireless/msg64176.html</A>
</I>>><i>
</I>>><i> but it's from February... is it really not in the .38.x kernel yet??
</I>><i>
</I>><i> That patch got merged in 2.6.38-rc1, so it is there.
</I>
I've been looking through the various commits:
<A HREF="http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.38.y.git;a=commitdiff;h=3dd823e6b86407aed1a025041d8f1df77e43a9c8">http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.38.y.git;a=commitdiff;h=3dd823e6b86407aed1a025041d8f1df77e43a9c8</A>
<A HREF="http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.38.y.git;a=commitdiff;h=554d1d027b19265c4aa3f718b3126d2b86e09a08">http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.38.y.git;a=commitdiff;h=554d1d027b19265c4aa3f718b3126d2b86e09a08</A>
<A HREF="http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.38.y.git;a=commitdiff;h=6cd0b1cb872b3bf9fc5de4536404206ab74bafdd">http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.38.y.git;a=commitdiff;h=6cd0b1cb872b3bf9fc5de4536404206ab74bafdd</A>
What is odd about the 3dd8 commit (i.e. the fix I mentioned in the first
mail) is there is code that says:
if (test_bit(STATUS_INT_ENABLED, &priv->status))
iwl_enable_interrupts(priv);
I presume test_bit returns "true" if the bit is set? If so, then the
call, is a little strange as iwl_enable_interrupts sets the bit again.
So it's only enabled if it's already set? Perhaps test_bit returns 0
when it's already set?
172 static inline void iwl_enable_interrupts(struct iwl_priv *priv)
173 {
174 IWL_DEBUG_ISR(priv, "Enabling interrupts\n");
175 set_bit(STATUS_INT_ENABLED, &priv->status);
176 iwl_write32(priv, CSR_INT_MASK, priv->inta_mask);
177 }
But I'm no kernel hacker, so all this could be rubbish.
Col
--
Colin Guthrie
mageia(at)colin.guthr.ie
<A HREF="http://colin.guthr.ie/">http://colin.guthr.ie/</A>
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