All of lore.kernel.org
 help / color / mirror / Atom feed
From: <gregkh@linuxfoundation.org>
To: william.gray@linaro.org, gregkh@linuxfoundation.org, stable@kernel.org
Cc: <stable@vger.kernel.org>
Subject: FAILED: patch "[PATCH] counter: 104-quad-8: Fix skipped IRQ lines during events" failed to apply to 5.19-stable tree
Date: Sun, 25 Sep 2022 09:35:58 +0200	[thread overview]
Message-ID: <16640913585139@kroah.com> (raw)


The patch below does not apply to the 5.19-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

Possible dependencies:

2bc54aaa65d2 ("counter: 104-quad-8: Fix skipped IRQ lines during events configuration")
daae1ee572d1 ("counter: 104-quad-8: Implement and utilize register structures")
b6e9cded90d4 ("counter: 104-quad-8: Utilize iomap interface")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 2bc54aaa65d2126ae629919175708a28ce7ef06e Mon Sep 17 00:00:00 2001
From: William Breathitt Gray <william.gray@linaro.org>
Date: Thu, 22 Sep 2022 07:20:56 -0400
Subject: [PATCH] counter: 104-quad-8: Fix skipped IRQ lines during events
 configuration

IRQ trigger configuration is skipped if it has already been set before;
however, the IRQ line still needs to be OR'd to irq_enabled because
irq_enabled is reset for every events_configure call. This patch moves
the irq_enabled OR operation update to before the irq_trigger check so
that IRQ line enablement is not skipped.

Fixes: c95cc0d95702 ("counter: 104-quad-8: Fix persistent enabled events bug")
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/20220815122301.2750-1-william.gray@linaro.org/
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Link: https://lore.kernel.org/r/179eed11eaf225dbd908993b510df0c8f67b1230.1663844776.git.william.gray@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/counter/104-quad-8.c b/drivers/counter/104-quad-8.c
index 62c2b7ac4339..4407203e0c9b 100644
--- a/drivers/counter/104-quad-8.c
+++ b/drivers/counter/104-quad-8.c
@@ -449,6 +449,9 @@ static int quad8_events_configure(struct counter_device *counter)
 			return -EINVAL;
 		}
 
+		/* Enable IRQ line */
+		irq_enabled |= BIT(event_node->channel);
+
 		/* Skip configuration if it is the same as previously set */
 		if (priv->irq_trigger[event_node->channel] == next_irq_trigger)
 			continue;
@@ -462,9 +465,6 @@ static int quad8_events_configure(struct counter_device *counter)
 			  priv->irq_trigger[event_node->channel] << 3;
 		iowrite8(QUAD8_CTR_IOR | ior_cfg,
 			 &priv->reg->channel[event_node->channel].control);
-
-		/* Enable IRQ line */
-		irq_enabled |= BIT(event_node->channel);
 	}
 
 	iowrite8(irq_enabled, &priv->reg->index_interrupt);


                 reply	other threads:[~2022-09-25  7:36 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

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=16640913585139@kroah.com \
    --to=gregkh@linuxfoundation.org \
    --cc=stable@kernel.org \
    --cc=stable@vger.kernel.org \
    --cc=william.gray@linaro.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.