From: Vincent Whitchurch <vincent.whitchurch@axis.com>
To: "Enrico Weigelt, metux IT consult" <info@metux.net>,
Viresh Kumar <vireshk@kernel.org>,
Linus Walleij <linus.walleij@linaro.org>,
"Bartosz Golaszewski" <brgl@bgdev.pl>
Cc: mst@redhat.com, linux-gpio@vger.kernel.org,
Viresh Kumar <viresh.kumar@linaro.org>,
Vincent Whitchurch <vincent.whitchurch@axis.com>,
linux-kernel@vger.kernel.org,
virtualization@lists.linux-foundation.org,
Bartosz Golaszewski <bgolaszewski@baylibre.com>,
kernel@axis.com
Subject: [PATCH] gpio: virtio: remove timeout
Date: Mon, 20 Dec 2021 14:06:56 +0100 [thread overview]
Message-ID: <20211220130656.16900-1-vincent.whitchurch@axis.com> (raw)
The driver imposes an arbitrary one second timeout on virtio requests,
but the specification doesn't prevent the virtio device from taking
longer to process requests, so remove this timeout to support all
systems and device implementations.
Fixes: 3a29355a22c0275fe86 ("gpio: Add virtio-gpio driver")
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
---
drivers/gpio/gpio-virtio.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/drivers/gpio/gpio-virtio.c b/drivers/gpio/gpio-virtio.c
index 84f96b78f32a..9f4941bc5760 100644
--- a/drivers/gpio/gpio-virtio.c
+++ b/drivers/gpio/gpio-virtio.c
@@ -100,11 +100,7 @@ static int _virtio_gpio_req(struct virtio_gpio *vgpio, u16 type, u16 gpio,
virtqueue_kick(vgpio->request_vq);
mutex_unlock(&vgpio->lock);
- if (!wait_for_completion_timeout(&line->completion, HZ)) {
- dev_err(dev, "GPIO operation timed out\n");
- ret = -ETIMEDOUT;
- goto out;
- }
+ wait_for_completion(&line->completion);
if (unlikely(res->status != VIRTIO_GPIO_STATUS_OK)) {
dev_err(dev, "GPIO request failed: %d\n", gpio);
--
2.33.1
_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization
next reply other threads:[~2021-12-20 13:07 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-20 13:06 Vincent Whitchurch [this message]
[not found] ` <CAMRc=MeEnSvSxQe-DdLSujSLpzxa-bacJ590BW+tt8awAJq3_w@mail.gmail.com>
2021-12-20 15:35 ` [PATCH] gpio: virtio: remove timeout Michael S. Tsirkin
2021-12-20 15:35 ` Michael S. Tsirkin
2021-12-21 4:26 ` Viresh Kumar
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20211220130656.16900-1-vincent.whitchurch@axis.com \
--to=vincent.whitchurch@axis.com \
--cc=bgolaszewski@baylibre.com \
--cc=brgl@bgdev.pl \
--cc=info@metux.net \
--cc=kernel@axis.com \
--cc=linus.walleij@linaro.org \
--cc=linux-gpio@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mst@redhat.com \
--cc=viresh.kumar@linaro.org \
--cc=vireshk@kernel.org \
--cc=virtualization@lists.linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox