From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org,
Enguerrand de Ribaucourt
<enguerrand.de-ribaucourt@savoirfairelinux.com>,
Andrew Lunn <andrew@lunn.ch>, Jakub Kicinski <kuba@kernel.org>
Subject: [PATCH 4.19 10/11] net: dp83822: disable rx error interrupt
Date: Fri, 16 Sep 2022 12:08:06 +0200 [thread overview]
Message-ID: <20220916100443.166239140@linuxfoundation.org> (raw)
In-Reply-To: <20220916100442.662955946@linuxfoundation.org>
From: Enguerrand de Ribaucourt <enguerrand.de-ribaucourt@savoirfairelinux.com>
commit 0e597e2affb90d6ea48df6890d882924acf71e19 upstream.
Some RX errors, notably when disconnecting the cable, increase the RCSR
register. Once half full (0x7fff), an interrupt flood is generated. I
measured ~3k/s interrupts even after the RX errors transfer was
stopped.
Since we don't read and clear the RCSR register, we should disable this
interrupt.
Fixes: 87461f7a58ab ("net: phy: DP83822 initial driver submission")
Signed-off-by: Enguerrand de Ribaucourt <enguerrand.de-ribaucourt@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/phy/dp83822.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/net/phy/dp83822.c
+++ b/drivers/net/phy/dp83822.c
@@ -203,8 +203,7 @@ static int dp83822_config_intr(struct ph
if (misr_status < 0)
return misr_status;
- misr_status |= (DP83822_RX_ERR_HF_INT_EN |
- DP83822_ANEG_COMPLETE_INT_EN |
+ misr_status |= (DP83822_ANEG_COMPLETE_INT_EN |
DP83822_DUP_MODE_CHANGE_INT_EN |
DP83822_SPEED_CHANGED_INT_EN |
DP83822_LINK_STAT_INT_EN |
next prev parent reply other threads:[~2022-09-16 10:10 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-16 10:07 [PATCH 4.19 00/11] 4.19.259-rc1 review Greg Kroah-Hartman
2022-09-16 10:07 ` [PATCH 4.19 01/11] drm/msm/rd: Fix FIFO-full deadlock Greg Kroah-Hartman
2022-09-16 10:07 ` [PATCH 4.19 02/11] HID: ishtp-hid-clientHID: ishtp-hid-client: Fix comment typo Greg Kroah-Hartman
2022-09-16 10:07 ` [PATCH 4.19 03/11] tg3: Disable tg3 device on system reboot to avoid triggering AER Greg Kroah-Hartman
2022-09-16 10:08 ` [PATCH 4.19 04/11] ieee802154: cc2520: add rc code in cc2520_tx() Greg Kroah-Hartman
2022-09-16 10:08 ` [PATCH 4.19 05/11] Input: iforce - add support for Boeder Force Feedback Wheel Greg Kroah-Hartman
2022-09-16 10:08 ` [PATCH 4.19 06/11] perf/arm_pmu_platform: fix tests for platform_get_irq() failure Greg Kroah-Hartman
2022-09-16 10:08 ` [PATCH 4.19 07/11] platform/x86: acer-wmi: Acer Aspire One AOD270/Packard Bell Dot keymap fixes Greg Kroah-Hartman
2022-09-16 10:08 ` [PATCH 4.19 08/11] usb: storage: Add ASUS <0x0b05:0x1932> to IGNORE_UAS Greg Kroah-Hartman
2022-09-16 10:08 ` [PATCH 4.19 09/11] mm: Fix TLB flush for not-first PFNMAP mappings in unmap_region() Greg Kroah-Hartman
2022-09-16 10:08 ` Greg Kroah-Hartman [this message]
2022-09-16 10:08 ` [PATCH 4.19 11/11] tracefs: Only clobber mode/uid/gid on remount if asked Greg Kroah-Hartman
2022-09-16 14:00 ` [PATCH 4.19 00/11] 4.19.259-rc1 review Pavel Machek
2022-09-16 21:46 ` Guenter Roeck
2022-09-17 14:04 ` Sudip Mukherjee (Codethink)
2022-09-17 16:31 ` Naresh Kamboju
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=20220916100443.166239140@linuxfoundation.org \
--to=gregkh@linuxfoundation.org \
--cc=andrew@lunn.ch \
--cc=enguerrand.de-ribaucourt@savoirfairelinux.com \
--cc=kuba@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=stable@vger.kernel.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.