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Message-ID: <20231128133811.net.v2.4.I9c7bfe6fb76850f0323b3996e25a10ef0281fb7a@changeid>
Date: Tue, 28 Nov 2023 13:38:13 -0800
From: Douglas Anderson <dianders@...omium.org>
To: Jakub Kicinski <kuba@...nel.org>,
Hayes Wang <hayeswang@...ltek.com>,
"David S . Miller" <davem@...emloft.net>
Cc: Laura Nao <laura.nao@...labora.com>,
Edward Hill <ecgh@...omium.org>,
Alan Stern <stern@...land.harvard.edu>,
Grant Grundler <grundler@...omium.org>,
linux-usb@...r.kernel.org, Simon Horman <horms@...nel.org>,
Douglas Anderson <dianders@...omium.org>,
Bjørn Mork <bjorn@...k.no>,
Eric Dumazet <edumazet@...gle.com>,
Paolo Abeni <pabeni@...hat.com>,
Prashant Malani <pmalani@...omium.org>,
linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: [PATCH net v2 4/5] r8152: Add RTL8152_INACCESSIBLE to r8153_pre_firmware_1()
Delay loops in r8152 should break out if RTL8152_INACCESSIBLE is set
so that they don't delay too long if the device becomes
inaccessible. Add the break to the loop in r8153_pre_firmware_1().
Fixes: 9370f2d05a2a ("r8152: support request_firmware for RTL8153")
Reviewed-by: Grant Grundler <grundler@...omium.org>
Signed-off-by: Douglas Anderson <dianders@...omium.org>
---
Changes in v2:
- Added Fixes tag to RTL8152_INACCESSIBLE patches.
- Split RTL8152_INACCESSIBLE patches by the commit the loop came from.
drivers/net/usb/r8152.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index b7bbebf09d85..26db3f6b3aa1 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -5645,6 +5645,8 @@ static int r8153_pre_firmware_1(struct r8152 *tp)
for (i = 0; i < 104; i++) {
u32 ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_WDT1_CTRL);
+ if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
+ return -ENODEV;
if (!(ocp_data & WTD1_EN))
break;
usleep_range(1000, 2000);
--
2.43.0.rc1.413.gea7ed67945-goog
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