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Date:   Thu, 19 Aug 2021 12:08:29 -0700
From:   Jakub Kicinski <kuba@kernel.org>
To:     Yufeng Mo <moyufeng@huawei.com>
Cc:     <davem@davemloft.net>, <netdev@vger.kernel.org>,
        <shenjian15@huawei.com>, <lipeng321@huawei.com>,
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Subject: Re: [PATCH V2 net-next 2/4] ethtool: extend coalesce setting uAPI
 with CQE mode
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References: <1629353844-49626-1-git-send-email-moyufeng@huawei.com>
        <1629353844-49626-3-git-send-email-moyufeng@huawei.com>
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On Thu, 19 Aug 2021 14:17:22 +0800 Yufeng Mo wrote:
> In order to support more coalesce parameters through netlink,
> add two new parameter kernel_coal and extack for .set_coalesce
> and .get_coalesce, then some extra info can return to user with
> the netlink API.
> 
> Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>

Looks like it builds fine, unfortunately you need to correct the kdoc 
of the functions which have it (by adding the new param description
everywhere), otherwise we'll get these on W=1 builds:

drivers/net/ethernet/hisilicon/hns/hns_ethtool.c:741: warning: Function parameter or member 'kernel_coal' not described in 'hns_get_coalesce'
drivers/net/ethernet/hisilicon/hns/hns_ethtool.c:741: warning: Function parameter or member 'extack' not described in 'hns_get_coalesce'
drivers/net/ethernet/hisilicon/hns/hns_ethtool.c:787: warning: Function parameter or member 'kernel_coal' not described in 'hns_set_coalesce'
drivers/net/ethernet/hisilicon/hns/hns_ethtool.c:787: warning: Function parameter or member 'extack' not described in 'hns_set_coalesce'
drivers/net/ethernet/intel/i40e/i40e_ethtool.c:2825: warning: Function parameter or member 'kernel_coal' not described in 'i40e_get_coalesce'
drivers/net/ethernet/intel/i40e/i40e_ethtool.c:2825: warning: Function parameter or member 'extack' not described in 'i40e_get_coalesce'
drivers/net/ethernet/intel/i40e/i40e_ethtool.c:2999: warning: Function parameter or member 'kernel_coal' not described in 'i40e_set_coalesce'
drivers/net/ethernet/intel/i40e/i40e_ethtool.c:2999: warning: Function parameter or member 'extack' not described in 'i40e_set_coalesce'
drivers/net/ethernet/intel/iavf/iavf_ethtool.c:699: warning: Function parameter or member 'kernel_coal' not described in 'iavf_get_coalesce'
drivers/net/ethernet/intel/iavf/iavf_ethtool.c:699: warning: Function parameter or member 'extack' not described in 'iavf_get_coalesce'
drivers/net/ethernet/intel/iavf/iavf_ethtool.c:817: warning: Function parameter or member 'kernel_coal' not described in 'iavf_set_coalesce'
drivers/net/ethernet/intel/iavf/iavf_ethtool.c:817: warning: Function parameter or member 'extack' not described in 'iavf_set_coalesce'
drivers/net/ethernet/ti/davinci_emac.c:395: warning: Function parameter or member 'kernel_coal' not described in 'emac_get_coalesce'
drivers/net/ethernet/ti/davinci_emac.c:395: warning: Function parameter or member 'extack' not described in 'emac_get_coalesce'
drivers/net/ethernet/ti/davinci_emac.c:415: warning: Function parameter or member 'kernel_coal' not described in 'emac_set_coalesce'
drivers/net/ethernet/ti/davinci_emac.c:415: warning: Function parameter or member 'extack' not described in 'emac_set_coalesce'
drivers/net/ethernet/xilinx/xilinx_axienet_main.c:1416: warning: Function parameter or member 'kernel_coal' not described in 'axienet_ethtools_get_coalesce'
drivers/net/ethernet/xilinx/xilinx_axienet_main.c:1416: warning: Function parameter or member 'extack' not described in 'axienet_ethtools_get_coalesce'
drivers/net/ethernet/xilinx/xilinx_axienet_main.c:1444: warning: Function parameter or member 'kernel_coal' not described in 'axienet_ethtools_set_coalesce'
drivers/net/ethernet/xilinx/xilinx_axienet_main.c:1444: warning:
Function parameter or member 'extack' not described in
'axienet_ethtools_set_coalesce'