From: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
To: Robert Richter <rric@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Jason Cooper <jason@lakedaemon.net>,
Marc Zyngier <marc.zyngier@arm.com>,
Robert Richter <rrichter@cavium.com>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] GICv3: Fixing 32 bit compatibility
Date: Tue, 9 Sep 2014 10:00:42 +0200 [thread overview]
Message-ID: <20140909080042.GO23009@pengutronix.de> (raw)
In-Reply-To: <1410185480-5153-1-git-send-email-rric@kernel.org>
Hello Robert,
On Mon, Sep 08, 2014 at 04:11:19PM +0200, Robert Richter wrote:
> From: Robert Richter <rrichter@cavium.com>
>
> Fixing 32 bit compatibility by using ULL for u64 constants.
>
> Signed-off-by: Robert Richter <rrichter@cavium.com>
> ---
> drivers/irqchip/irq-gic-v3.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
> index 57eaa5a0b1e3..9e13c87c7dfe 100644
> --- a/drivers/irqchip/irq-gic-v3.c
> +++ b/drivers/irqchip/irq-gic-v3.c
> @@ -441,7 +441,7 @@ static u16 gic_compute_target_list(int *base_cpu, const struct cpumask *mask,
>
> mpidr = cpu_logical_map(cpu);
>
> - if (cluster_id != (mpidr & ~0xffUL)) {
> + if (cluster_id != (mpidr & ~0xffULL)) {
> cpu--;
> goto out;
> }
> @@ -479,7 +479,7 @@ static void gic_raise_softirq(const struct cpumask *mask, unsigned int irq)
> smp_wmb();
>
> for_each_cpu_mask(cpu, *mask) {
> - u64 cluster_id = cpu_logical_map(cpu) & ~0xffUL;
> + u64 cluster_id = cpu_logical_map(cpu) & ~0xffULL;
This doesn't change anything, does it?
I wonder if it would be cleaner to use (u64)0xff here. Or still better
put the determination of the current cluster id(?) into a static inline
function?
Further, apart from arm and arm64 all other arch defining
cpu_logical_map (m32r, mips, mn10300, parisc, sh, sparc, um,
xtensa) return an int. (Three of them return just the cpu parameter
which at least for irq-gic-v3 is an int, too.)
Best regards
Uwe
--
Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | http://www.pengutronix.de/ |
next prev parent reply other threads:[~2014-09-09 8:00 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-08 14:11 [PATCH] GICv3: Fixing 32 bit compatibility Robert Richter
2014-09-08 14:24 ` Marc Zyngier
2014-09-14 5:55 ` Jason Cooper
2014-09-08 14:31 ` [PATCH] ITS: " Robert Richter
2014-09-09 8:00 ` Uwe Kleine-König [this message]
2014-09-09 9:12 ` [PATCH] GICv3: " Robert Richter
2014-09-09 9:19 ` Uwe Kleine-König
2014-09-09 9:26 ` Robert Richter
2014-09-09 9:43 ` Uwe Kleine-König
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