From 23317f18bd485e821ca494a61dc09044b1d0e371 Mon Sep 17 00:00:00 2001 From: John Crispin Date: Thu, 7 Sep 2017 10:11:45 +0200 Subject: [PATCH] mediatek: fix mdio schedule while atomic error Signed-off-by: John Crispin --- .../mediatek/patches-4.9/0062-mdio-atomic.patch | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 target/linux/mediatek/patches-4.9/0062-mdio-atomic.patch diff --git a/target/linux/mediatek/patches-4.9/0062-mdio-atomic.patch b/target/linux/mediatek/patches-4.9/0062-mdio-atomic.patch new file mode 100644 index 00000000000..040084d781a --- /dev/null +++ b/target/linux/mediatek/patches-4.9/0062-mdio-atomic.patch @@ -0,0 +1,16 @@ +Index: linux-4.9.47/drivers/net/ethernet/mediatek/mtk_eth_soc.c +=================================================================== +--- linux-4.9.47.orig/drivers/net/ethernet/mediatek/mtk_eth_soc.c ++++ linux-4.9.47/drivers/net/ethernet/mediatek/mtk_eth_soc.c +@@ -97,7 +97,10 @@ static int mtk_mdio_busy_wait(struct mtk + return 0; + if (time_after(jiffies, t_start + PHY_IAC_TIMEOUT)) + break; +- usleep_range(10, 20); ++ if (in_atomic()) ++ udelay(10); ++ else ++ usleep_range(10, 20); + } + + dev_err(eth->dev, "mdio: MDIO timeout\n"); -- 2.30.2