From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Wright Feng <wright.feng@cypress.com>,
Chi-hsien Lin <chi-hsien.lin@cypress.com>,
Kalle Valo <kvalo@codeaurora.org>,
Sasha Levin <sashal@kernel.org>,
linux-wireless@vger.kernel.org,
brcm80211-dev-list.pdl@broadcom.com,
brcm80211-dev-list@cypress.com, netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 4.19 19/31] brcmfmac: keep SDIO watchdog running when console_interval is non-zero
Date: Mon, 10 Aug 2020 15:12:47 -0400 [thread overview]
Message-ID: <20200810191259.3794858-19-sashal@kernel.org> (raw)
In-Reply-To: <20200810191259.3794858-1-sashal@kernel.org>
From: Wright Feng <wright.feng@cypress.com>
[ Upstream commit eccbf46b15bb3e35d004148f7c3a8fa8e9b26c1e ]
brcmfmac host driver makes SDIO bus sleep and stops SDIO watchdog if no
pending event or data. As a result, host driver does not poll firmware
console buffer before buffer overflow, which leads to missing firmware
logs. We should not stop SDIO watchdog if console_interval is non-zero
in debug build.
Signed-off-by: Wright Feng <wright.feng@cypress.com>
Signed-off-by: Chi-hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200604071835.3842-4-wright.feng@cypress.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
index 96870d1b3b73b..a5195bdb4d9bd 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -3633,7 +3633,11 @@ static void brcmf_sdio_bus_watchdog(struct brcmf_sdio *bus)
if (bus->idlecount > bus->idletime) {
brcmf_dbg(SDIO, "idle\n");
sdio_claim_host(bus->sdiodev->func1);
- brcmf_sdio_wd_timer(bus, false);
+#ifdef DEBUG
+ if (!BRCMF_FWCON_ON() ||
+ bus->console_interval == 0)
+#endif
+ brcmf_sdio_wd_timer(bus, false);
bus->idlecount = 0;
brcmf_sdio_bus_sleep(bus, true, false);
sdio_release_host(bus->sdiodev->func1);
--
2.25.1
next prev parent reply other threads:[~2020-08-10 19:21 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200810191259.3794858-1-sashal@kernel.org>
2020-08-10 19:12 ` [PATCH AUTOSEL 4.19 03/31] Bluetooth: add a mutex lock to avoid UAF in do_enale_set Sasha Levin
2020-08-10 19:12 ` Sasha Levin [this message]
2020-08-10 19:12 ` [PATCH AUTOSEL 4.19 20/31] brcmfmac: To fix Bss Info flag definition Bug Sasha Levin
2020-08-10 19:12 ` [PATCH AUTOSEL 4.19 21/31] brcmfmac: set state of hanger slot to FREE when flushing PSQ Sasha Levin
2020-08-10 19:12 ` [PATCH AUTOSEL 4.19 22/31] iwlegacy: Check the return value of pcie_capability_read_*() Sasha Levin
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=20200810191259.3794858-19-sashal@kernel.org \
--to=sashal@kernel.org \
--cc=brcm80211-dev-list.pdl@broadcom.com \
--cc=brcm80211-dev-list@cypress.com \
--cc=chi-hsien.lin@cypress.com \
--cc=kvalo@codeaurora.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-wireless@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=stable@vger.kernel.org \
--cc=wright.feng@cypress.com \
/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;
as well as URLs for NNTP newsgroup(s).