From: <sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
To: <john-Pj+rj9U5foFAfugRpC6u6w@public.gmane.org>,
<davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
Cc: nbd-p3rKhJxN3npAfugRpC6u6w@public.gmane.org,
keyhaede-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Sean Wang <sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>,
linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
objelf-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
Subject: [PATCH net v4 6/9] net: ethernet: mediatek: fix issue of driver removal with interface is up
Date: Thu, 1 Sep 2016 10:47:32 +0800 [thread overview]
Message-ID: <1472698055-8821-7-git-send-email-sean.wang@mediatek.com> (raw)
In-Reply-To: <1472698055-8821-1-git-send-email-sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
From: Sean Wang <sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
mtk_stop() must be called to stop for freeing DMA
resources acquired and restoring state changed by mtk_open()
firstly when module removal.
Signed-off-by: Sean Wang <sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index bf5b7e1..556951e 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -1906,6 +1906,14 @@ err_free_dev:
static int mtk_remove(struct platform_device *pdev)
{
struct mtk_eth *eth = platform_get_drvdata(pdev);
+ int i;
+
+ /* stop all devices to make sure that dma is properly shut down */
+ for (i = 0; i < MTK_MAC_COUNT; i++) {
+ if (!eth->netdev[i])
+ continue;
+ mtk_stop(eth->netdev[i]);
+ }
clk_disable_unprepare(eth->clks[MTK_CLK_ETHIF]);
clk_disable_unprepare(eth->clks[MTK_CLK_ESW]);
--
1.9.1
WARNING: multiple messages have this Message-ID (diff)
From: <sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
To: john-Pj+rj9U5foFAfugRpC6u6w@public.gmane.org,
davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org
Cc: nbd-p3rKhJxN3npAfugRpC6u6w@public.gmane.org,
keyhaede-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Sean Wang <sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>,
linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
objelf-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
Subject: [PATCH net v4 6/9] net: ethernet: mediatek: fix issue of driver removal with interface is up
Date: Thu, 1 Sep 2016 10:47:32 +0800 [thread overview]
Message-ID: <1472698055-8821-7-git-send-email-sean.wang@mediatek.com> (raw)
In-Reply-To: <1472698055-8821-1-git-send-email-sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
From: Sean Wang <sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
mtk_stop() must be called to stop for freeing DMA
resources acquired and restoring state changed by mtk_open()
firstly when module removal.
Signed-off-by: Sean Wang <sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index bf5b7e1..556951e 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -1906,6 +1906,14 @@ err_free_dev:
static int mtk_remove(struct platform_device *pdev)
{
struct mtk_eth *eth = platform_get_drvdata(pdev);
+ int i;
+
+ /* stop all devices to make sure that dma is properly shut down */
+ for (i = 0; i < MTK_MAC_COUNT; i++) {
+ if (!eth->netdev[i])
+ continue;
+ mtk_stop(eth->netdev[i]);
+ }
clk_disable_unprepare(eth->clks[MTK_CLK_ETHIF]);
clk_disable_unprepare(eth->clks[MTK_CLK_ESW]);
--
1.9.1
next prev parent reply other threads:[~2016-09-01 2:47 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-01 2:47 [PATCH net v4 0/9] net: ethernet: mediatek: a couple of fixes sean.wang
2016-09-01 2:47 ` sean.wang
[not found] ` <1472698055-8821-1-git-send-email-sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
2016-09-01 2:47 ` [PATCH net v4 1/9] net: ethernet: mediatek: fix fails from TX housekeeping due to incorrect port setup sean.wang-NuS5LvNUpcJWk0Htik3J/w
2016-09-01 2:47 ` sean.wang-NuS5LvNUpcJWk0Htik3J/w
2016-09-01 2:47 ` [PATCH net v4 2/9] net: ethernet: mediatek: fix incorrect return value of devm_clk_get with EPROBE_DEFER sean.wang-NuS5LvNUpcJWk0Htik3J/w
2016-09-01 2:47 ` sean.wang-NuS5LvNUpcJWk0Htik3J/w
2016-09-01 2:47 ` [PATCH net v4 3/9] net: ethernet: mediatek: fix API usage with skb_free_frag sean.wang-NuS5LvNUpcJWk0Htik3J/w
2016-09-01 2:47 ` sean.wang-NuS5LvNUpcJWk0Htik3J/w
2016-09-01 2:47 ` [PATCH net v4 4/9] net: ethernet: mediatek: remove redundant free_irq for devm_request_irq allocated irq sean.wang-NuS5LvNUpcJWk0Htik3J/w
2016-09-01 2:47 ` sean.wang-NuS5LvNUpcJWk0Htik3J/w
2016-09-01 2:47 ` [PATCH net v4 5/9] net: ethernet: mediatek: fix logic unbalance between probe and remove sean.wang-NuS5LvNUpcJWk0Htik3J/w
2016-09-01 2:47 ` sean.wang-NuS5LvNUpcJWk0Htik3J/w
2016-09-01 2:47 ` sean.wang-NuS5LvNUpcJWk0Htik3J/w [this message]
2016-09-01 2:47 ` [PATCH net v4 6/9] net: ethernet: mediatek: fix issue of driver removal with interface is up sean.wang-NuS5LvNUpcJWk0Htik3J/w
2016-09-01 2:47 ` [PATCH net v4 7/9] net: ethernet: mediatek: fix the missing of_node_put() after node is used done inside mtk_mdio_init sean.wang-NuS5LvNUpcJWk0Htik3J/w
2016-09-01 2:47 ` sean.wang-NuS5LvNUpcJWk0Htik3J/w
2016-09-01 2:47 ` [PATCH net v4 9/9] net: ethernet: mediatek: fix error handling " sean.wang-NuS5LvNUpcJWk0Htik3J/w
2016-09-01 2:47 ` sean.wang-NuS5LvNUpcJWk0Htik3J/w
2016-09-01 2:47 ` [PATCH net v4 8/9] net: ethernet: mediatek: use devm_mdiobus_alloc instead of mdiobus_alloc " sean.wang
2016-09-01 2:47 ` sean.wang
2016-09-01 3:55 ` [PATCH net v4 0/9] net: ethernet: mediatek: a couple of fixes David Miller
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