| Message ID | 1426141291-21641-1-git-send-email-sboyd@codeaurora.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Wed, Mar 11, 2015 at 11:21:31PM -0700, Stephen Boyd wrote: > In a uniprocessor implementation the interrupt processor targets > registers are read-as-zero/write-ignored (RAZ/WI). Unfortunately > gic_get_cpumask() will print a critical message saying > > GIC CPU mask not found - kernel will fail to boot. > > if these registers all read as zero, but there won't actually be > a problem on uniprocessor systems and the kernel will boot just > fine. Skip this check if we're running a UP kernel or if we > detect that the hardware only supports a single processor. > > Acked-by: Nicolas Pitre <nico@linaro.org> > Acked-by: Felipe Balbi <balbi@ti.com> > Acked-by: Nishanth Menon <nm@ti.com> > Acked-by: Stefan Agner <stefan@agner.ch> > Cc: Russell King <rmk+kernel@arm.linux.org.uk> > Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> > --- > > Picked up acks from the list > > drivers/irqchip/irq-gic.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) Applied to irqchip/core thx, Jason.
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c index 4634cf7d0ec3..50e70a8c7ec4 100644 --- a/drivers/irqchip/irq-gic.c +++ b/drivers/irqchip/irq-gic.c @@ -349,7 +349,7 @@ static u8 gic_get_cpumask(struct gic_chip_data *gic) break; } - if (!mask) + if (!mask && num_possible_cpus() > 1) pr_crit("GIC CPU mask not found - kernel will fail to boot.\n"); return mask;