Messages in this thread | | | Date | Mon, 10 Jan 2005 09:56:07 -0200 | From | Marcelo Tosatti <> | Subject | Re: [RESEND] [PATCH 3/7] ppc: remove cli()/sti() in arch/ppc/8xx_io/fec.c |
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Looks OK to me.
Dan, Tom, this should be applied to the linuxppc-2.5 IMO.
On Sat, Jan 08, 2005 at 11:04:15AM -0600, James Nelson wrote: > Replace save_flags()/resore_flags() with spin_lock_irqsave()/spin_unlock_irqrestore() > and document reasons for locking. > > Signed-off-by: James Nelson <james4765@gmail.com> > > diff -urN --exclude='*~' linux-2.6.10-mm1-original/arch/ppc/8xx_io/fec.c linux-2.6.10-mm1/arch/ppc/8xx_io/fec.c > --- linux-2.6.10-mm1-original/arch/ppc/8xx_io/fec.c 2004-12-24 16:35:28.000000000 -0500 > +++ linux-2.6.10-mm1/arch/ppc/8xx_io/fec.c 2005-01-07 19:58:55.806516338 -0500 > @@ -389,6 +389,7 @@ > flush_dcache_range((unsigned long)skb->data, > (unsigned long)skb->data + skb->len); > > + /* disable interrupts while triggering transmit */ > spin_lock_irq(&fep->lock); > > /* Send it on its way. Tell FEC its ready, interrupt when done, > @@ -539,6 +540,7 @@ > struct sk_buff *skb; > > fep = dev->priv; > + /* lock while transmitting */ > spin_lock(&fep->lock); > bdp = fep->dirty_tx; > > @@ -799,6 +801,7 @@ > > if ((mip = mii_head) != NULL) { > ep->fec_mii_data = mip->mii_regval; > + > } > } > > @@ -817,8 +820,8 @@ > > retval = 0; > > - save_flags(flags); > - cli(); > + /* lock while modifying mii_list */ > + spin_lock_irqsave(&fep->lock, flags); > > if ((mip = mii_free) != NULL) { > mii_free = mip->mii_next; > @@ -836,7 +839,7 @@ > retval = 1; > } > > - restore_flags(flags); > + spin_unlock_irqrestore(&fep->lock, flags); > > return(retval); > } - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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