From: Lorenzo Bianconi <lorenzo@kernel.org>
To: nbd@nbd.name
Cc: linux-wireless@vger.kernel.org, lorenzo.bianconi@redhat.com
Subject: [PATCH] mt76: mt7921: always wake device if necessary in debugfs
Date: Wed, 18 Aug 2021 10:20:57 +0200 [thread overview]
Message-ID: <fcfa29c373b8bcb124d4e6a39d82dc45037a8560.1629274685.git.lorenzo@kernel.org> (raw)
Add missing device wakeup in debugfs code if we are accessing chip
registers.
Fixes: 1d8efc741df8 ("mt76: mt7921: introduce Runtime PM support")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c
index 29a24e768617..599e6e53e94f 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c
@@ -95,6 +95,8 @@ mt7921_tx_stats_show(struct seq_file *file, void *data)
struct mt7921_dev *dev = file->private;
int stat[8], i, n;
+ mt7921_mutex_acquire(dev);
+
mt7921_ampdu_stat_read_phy(&dev->phy, file);
/* Tx amsdu info */
@@ -104,6 +106,8 @@ mt7921_tx_stats_show(struct seq_file *file, void *data)
n += stat[i];
}
+ mt7921_mutex_release(dev);
+
for (i = 0; i < ARRAY_SIZE(stat); i++) {
seq_printf(file, "AMSDU pack count of %d MSDU in TXD: 0x%x ",
i + 1, stat[i]);
@@ -124,6 +128,8 @@ mt7921_queues_acq(struct seq_file *s, void *data)
struct mt7921_dev *dev = dev_get_drvdata(s->private);
int i;
+ mt7921_mutex_acquire(dev);
+
for (i = 0; i < 16; i++) {
int j, acs = i / 4, index = i % 4;
u32 ctrl, val, qlen = 0;
@@ -143,6 +149,8 @@ mt7921_queues_acq(struct seq_file *s, void *data)
seq_printf(s, "AC%d%d: queued=%d\n", acs, index, qlen);
}
+ mt7921_mutex_release(dev);
+
return 0;
}
--
2.31.1
reply other threads:[~2021-08-18 8:21 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=fcfa29c373b8bcb124d4e6a39d82dc45037a8560.1629274685.git.lorenzo@kernel.org \
--to=lorenzo@kernel.org \
--cc=linux-wireless@vger.kernel.org \
--cc=lorenzo.bianconi@redhat.com \
--cc=nbd@nbd.name \
/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.