From: Lorenzo Pieralisi <lpieralisi@kernel.org> To: Jens Wiklander <jens.wiklander@linaro.org> Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Sudeep Holla <sudeep.holla@arm.com>, Marc Bonnici <marc.bonnici@arm.com>, Olivier Deprez <Olivier.Deprez@arm.com> Subject: Re: [PATCH] firmware: arm_ffa: fix ffa_notification_info_get() Date: Fri, 8 Mar 2024 10:09:21 +0100 [thread overview] Message-ID: <ZerVwbT8cbXuzviy@lpieralisi> (raw) In-Reply-To: <20240307092104.937440-1-jens.wiklander@linaro.org> On Thu, Mar 07, 2024 at 10:21:04AM +0100, Jens Wiklander wrote: > FFA_NOTIFICATION_INFO_GET retries information about pending s/retries/retrieves/ > notifications. Notifications can be either global or per VCPU. Global > notifications are represented by the VM ID only, or 0 in the absence of > a hypervisor. I would just say "Global notifications are reported with the partition ID only in the list of endpoints with pending notifications". > ffa_notification_info_get() incorrectly expect no ID at all > for global notifications. Fix this by checking for 1 ID instead of 0. > > Fixes: 3522be48d82b ("firmware: arm_ffa: Implement the NOTIFICATION_INFO_GET interface") > Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org> > --- > drivers/firmware/arm_ffa/driver.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) Reviewed-by: Lorenzo Pieralisi <lpieralisi@kernel.org> > diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c > index c183c7d39c0f..ff1f37a4b28c 100644 > --- a/drivers/firmware/arm_ffa/driver.c > +++ b/drivers/firmware/arm_ffa/driver.c > @@ -790,7 +790,7 @@ static void ffa_notification_info_get(void) > > part_id = packed_id_list[ids_processed++]; > > - if (!ids_count[list]) { /* Global Notification */ > + if (ids_count[list] == 1) { /* Global Notification */ > __do_sched_recv_cb(part_id, 0, false); > continue; > } > -- > 2.34.1 >
WARNING: multiple messages have this Message-ID (diff)
From: Lorenzo Pieralisi <lpieralisi@kernel.org> To: Jens Wiklander <jens.wiklander@linaro.org> Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Sudeep Holla <sudeep.holla@arm.com>, Marc Bonnici <marc.bonnici@arm.com>, Olivier Deprez <Olivier.Deprez@arm.com> Subject: Re: [PATCH] firmware: arm_ffa: fix ffa_notification_info_get() Date: Fri, 8 Mar 2024 10:09:21 +0100 [thread overview] Message-ID: <ZerVwbT8cbXuzviy@lpieralisi> (raw) In-Reply-To: <20240307092104.937440-1-jens.wiklander@linaro.org> On Thu, Mar 07, 2024 at 10:21:04AM +0100, Jens Wiklander wrote: > FFA_NOTIFICATION_INFO_GET retries information about pending s/retries/retrieves/ > notifications. Notifications can be either global or per VCPU. Global > notifications are represented by the VM ID only, or 0 in the absence of > a hypervisor. I would just say "Global notifications are reported with the partition ID only in the list of endpoints with pending notifications". > ffa_notification_info_get() incorrectly expect no ID at all > for global notifications. Fix this by checking for 1 ID instead of 0. > > Fixes: 3522be48d82b ("firmware: arm_ffa: Implement the NOTIFICATION_INFO_GET interface") > Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org> > --- > drivers/firmware/arm_ffa/driver.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) Reviewed-by: Lorenzo Pieralisi <lpieralisi@kernel.org> > diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c > index c183c7d39c0f..ff1f37a4b28c 100644 > --- a/drivers/firmware/arm_ffa/driver.c > +++ b/drivers/firmware/arm_ffa/driver.c > @@ -790,7 +790,7 @@ static void ffa_notification_info_get(void) > > part_id = packed_id_list[ids_processed++]; > > - if (!ids_count[list]) { /* Global Notification */ > + if (ids_count[list] == 1) { /* Global Notification */ > __do_sched_recv_cb(part_id, 0, false); > continue; > } > -- > 2.34.1 > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2024-03-08 9:09 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-03-07 9:21 [PATCH] firmware: arm_ffa: fix ffa_notification_info_get() Jens Wiklander 2024-03-07 9:21 ` Jens Wiklander 2024-03-08 9:09 ` Lorenzo Pieralisi [this message] 2024-03-08 9:09 ` Lorenzo Pieralisi 2024-03-11 11:00 ` Jens Wiklander 2024-03-11 11:00 ` Jens Wiklander
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