From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
To: Mike Leach <mike.leach@linaro.org>
Cc: mark.rutland@arm.com, robh@kernel.org, saravanak@google.com,
devicetree@vger.kernel.org, coresight@lists.linaro.org,
linuxarm@huawei.com, dianders@chromium.org, krzk@kernel.org,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
shameerali.kolothum.thodi@huawei.com, ruanjinjie@huawei.com,
james.clark@linaro.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 3/5] coresight: cti: Use of_cpu_phandle_to_id for grabbing CPU id
Date: Fri, 11 Jul 2025 17:08:39 +0100 [thread overview]
Message-ID: <20250711170839.0000688c@huawei.com> (raw)
In-Reply-To: <CAJ9a7VhfW2RYXv6ZO28m65C75iyJUqTYos1tFXs8gAG5gx9yDA@mail.gmail.com>
On Fri, 11 Jul 2025 16:55:15 +0100
Mike Leach <mike.leach@linaro.org> wrote:
> Hi,
>
> On Tue, 8 Jul 2025 at 16:16, Alireza Sanaee <alireza.sanaee@huawei.com> wrote:
> >
> > Use the newly created API to grab CPU id.
> >
> > Signed-off-by: Alireza Sanaee <alireza.sanaee@huawei.com>
> > ---
> > .../hwtracing/coresight/coresight-cti-platform.c | 14 +-------------
> > 1 file changed, 1 insertion(+), 13 deletions(-)
> >
> > diff --git a/drivers/hwtracing/coresight/coresight-cti-platform.c b/drivers/hwtracing/coresight/coresight-cti-platform.c
> > index d0ae10bf6128..e1dc559d54aa 100644
> > --- a/drivers/hwtracing/coresight/coresight-cti-platform.c
> > +++ b/drivers/hwtracing/coresight/coresight-cti-platform.c
> > @@ -41,20 +41,8 @@
> > */
> > static int of_cti_get_cpu_at_node(const struct device_node *node)
> > {
> > - int cpu;
> > - struct device_node *dn;
> > + int cpu = of_cpu_phandle_to_id(node, NULL, 0);
> >
> > - if (node == NULL)
> > - return -1;
> > -
> > - dn = of_parse_phandle(node, "cpu", 0);
> > - /* CTI affinity defaults to no cpu */
> > - if (!dn)
> > - return -1;
> > - cpu = of_cpu_node_to_id(dn);
> > - of_node_put(dn);
> > -
> > - /* No Affinity if no cpu nodes are found */
>
> Leave the above comment in place.
>
> > return (cpu < 0) ? -1 : cpu;
> > }
> >
> > --
> > 2.43.0
> >
>
> With that
>
> Reviewed-by: Mike Leach <mike.leach@linro.org>
Just in case Ali doesn't notice - typo in your address Mike!
(usually it is me who manages that ;)
next prev parent reply other threads:[~2025-07-11 16:51 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-08 15:14 [PATCH v2 0/5] Refactoring finding CPU phandles in DT Alireza Sanaee
2025-07-08 15:14 ` [PATCH v2 1/5] of: add infra for finding CPU id from phandle Alireza Sanaee
2025-07-11 9:17 ` Jonathan Cameron
2025-07-11 9:35 ` Jonathan Cameron
2025-07-08 15:14 ` [PATCH v2 2/5] arch_topology: update CPU map to use the new API Alireza Sanaee
2025-07-11 9:25 ` Jonathan Cameron
2025-07-08 15:15 ` [PATCH v2 3/5] coresight: cti: Use of_cpu_phandle_to_id for grabbing CPU id Alireza Sanaee
2025-07-11 9:28 ` Jonathan Cameron
2025-07-11 15:55 ` Mike Leach
2025-07-11 16:08 ` Jonathan Cameron [this message]
2025-07-08 15:15 ` [PATCH v2 4/5] coresight: " Alireza Sanaee
2025-07-11 9:30 ` Jonathan Cameron
2025-07-08 15:15 ` [PATCH v2 5/5] perf/arm-dsu: refactor cpu id retrieval via new API of_cpu_phandle_to_id Alireza Sanaee
2025-07-11 9:36 ` Jonathan Cameron
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