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On 10/24/2007 12:36 AM, Jeff Garzik wrote: > After analyzing the elements that save_flags/cli/sti/restore_flags were > protecting, convert their usages to a global spinlock (the easiest and > most obvious next-step). There were some usages of flags being > intentionally cached, because the code already knew the state of > interrupts. These have been taken into account. > > This allows us to remove CONFIG_BROKEN_ON_SMP. Completely untested. > > Signed-off-by: Jeff Garzik <jgarzik@redhat.com> > --- > [...] > diff --git a/drivers/char/riscom8.c b/drivers/char/riscom8.c > index b37e626..45d109c 100644 > --- a/drivers/char/riscom8.c > +++ b/drivers/char/riscom8.c [...] > @@ -82,6 +83,8 @@ > static struct riscom_board * IRQ_to_board[16]; > static struct tty_driver *riscom_driver; > > +static spinlock_t riscom_lock = SPIN_LOCK_UNLOCKED; This is deprecated (see linux/spinlock_types.h for details), use DEFINE_SPINLOCK instead, otherwise seems OK. Revieweved-by: Jiri Slaby <jirislaby@gmail.com> thanks, -- Jiri Slaby (jirislaby@gmail.com) Faculty of Informatics, Masaryk University - 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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