diff options
Diffstat (limited to 'debian/patches/bugfix/arm64/huawei-taishan/0024-net-hns3-fix-a-bug-caused-by-udelay.patch')
| -rw-r--r-- | debian/patches/bugfix/arm64/huawei-taishan/0024-net-hns3-fix-a-bug-caused-by-udelay.patch | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/debian/patches/bugfix/arm64/huawei-taishan/0024-net-hns3-fix-a-bug-caused-by-udelay.patch b/debian/patches/bugfix/arm64/huawei-taishan/0024-net-hns3-fix-a-bug-caused-by-udelay.patch new file mode 100644 index 000000000..b3c3464ca --- /dev/null +++ b/debian/patches/bugfix/arm64/huawei-taishan/0024-net-hns3-fix-a-bug-caused-by-udelay.patch @@ -0,0 +1,39 @@ +From 0f27af14383edac1efaf140d7cbe2d7dfdab7318 Mon Sep 17 00:00:00 2001 +From: Peng Li <lipeng321@huawei.com> +Date: Thu, 20 Dec 2018 11:52:00 +0800 +Subject: [PATCH 24/31] net: hns3: fix a bug caused by udelay +Origin: https://git.kernel.org/linus/1b7d7b0581173219b82abbd81c88cf8aa7d402c2 + +udelay() in driver may always occupancy processor. If there is only +one cpu in system, the VF driver may initialize fail when insmod +PF and VF driver in the same system. This patch use msleep() to free +cpu when VF wait PF message. + +Signed-off-by: Peng Li <lipeng321@huawei.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +Index: linux/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c +=================================================================== +--- linux.orig/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c ++++ linux/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c +@@ -26,7 +26,7 @@ static int hclgevf_get_mbx_resp(struct h + u8 *resp_data, u16 resp_len) + { + #define HCLGEVF_MAX_TRY_TIMES 500 +-#define HCLGEVF_SLEEP_USCOEND 1000 ++#define HCLGEVF_SLEEP_USECOND 1000 + struct hclgevf_mbx_resp_status *mbx_resp; + u16 r_code0, r_code1; + int i = 0; +@@ -40,7 +40,7 @@ static int hclgevf_get_mbx_resp(struct h + } + + while ((!hdev->mbx_resp.received_resp) && (i < HCLGEVF_MAX_TRY_TIMES)) { +- udelay(HCLGEVF_SLEEP_USCOEND); ++ usleep_range(HCLGEVF_SLEEP_USECOND, HCLGEVF_SLEEP_USECOND * 2); + i++; + } + |