Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   <Claudiu.Beznea@microchip.com>
To:     <harini.katakam@amd.com>, <Nicolas.Ferre@microchip.com>,
        <davem@davemloft.net>, <richardcochran@gmail.com>,
        <andrei.pistirica@microchip.com>, <kuba@kernel.org>,
        <edumazet@google.com>, <pabeni@redhat.com>
CC:     <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <michal.simek@xilinx.com>, <harinikatakamlinux@gmail.com>,
        <harini.katakam@xilinx.com>, <michal.simek@amd.com>,
        <radhey.shyam.pandey@amd.com>
Subject: Re: [RESEND PATCH 2/2] net: macb: Optimize reading HW timestamp
Thread-Topic: [RESEND PATCH 2/2] net: macb: Optimize reading HW timestamp
Thread-Index: AQHYs6RZOM1LVlOeGkec9uBJ0c6jXQ==
Date:   Fri, 19 Aug 2022 08:19:05 +0000
Message-ID: <8cd2b49d-4edd-0fe9-a5dc-af2905a90951@microchip.com>
References: <20220816115500.353-1-harini.katakam@amd.com>
 <20220816115500.353-3-harini.katakam@amd.com>
In-Reply-To: <20220816115500.353-3-harini.katakam@amd.com>
Accept-Language: en-US
Content-Language: en-US
user-agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101
 Thunderbird/91.11.0
x-ms-exchange-antispam-messagedata-chunkcount: 1
x-ms-exchange-antispam-messagedata-0: =?utf-8?B?SDZyaEQ3Q2kzS3JxUERFaVIwOUtZUDc5NmxRaVhSY2VEMGdaVFBaMWxtNzJT?=
 =?utf-8?B?NmovNWNXdE4wYmV4TXVYRXlhS0h5S2RlUlhzVzBWWUp0RERQYUpIMklWUWEx?=
 =?utf-8?B?S3BhdUZ2bFZQeGMvZjRKTGNtWWU5S0QyM2NJVGJ4Z1NxdlVES0FWVURWWFVX?=
 =?utf-8?B?MmhYMDFtMklwSGdTWWk0RVE4eDFQZktIc3NoYllvblJYRit2MFk1MFhLR0VD?=
 =?utf-8?B?WGpzZTBPSEVsMEc5N3hjMi8xSWwyeGMxMk1Nd3FjY3pEa2FwaS9LZSt6MFJH?=
 =?utf-8?B?ZUV5YmxOc3BRRmFmUWFOTmczWmRxMHlwb00vdlZTWk9BQzRsUjg3eHpqZExY?=
 =?utf-8?B?eUlyTjNUSWkxZXIxcVV3dGNZT2FHcmUvalk5bWM1bGtXdUJJd2R2Z3BZVkF2?=
 =?utf-8?B?UGN2WUdpZWNyeFZQb3dZN3ZOM1FZcVZGYzJJaEZ6Sk52Z09aV3g3RUlZTlAr?=
 =?utf-8?B?QXJDcUY0NitWa0lyWmQ1ZFRQWU1tUStkZ3E1Und4WW1wMDI4YUZjRnlldTFD?=
 =?utf-8?B?SjB6aWNNb0poYUc5b2JTbFlNbS9xWG05bGF1d1c1alo0T25QYUUxYU1nV0Qr?=
 =?utf-8?B?RGJpdGZvZ1hDVjRiU21wS3R4bFE5V21lY3JOcE1DS1hMTVNNUy9CVUlNRnht?=
 =?utf-8?B?L3ZpNXg3Z0s2OXVLaGw1S01kbG9OOTJXVHAzNVNaL09IU2hLU0RCYmxWZ0pt?=
 =?utf-8?B?WHJTMlJFeElzZnVXK085U3Znby9JZzBONk94TFJ4d2xLMTFJaHpLczVMR3RO?=
 =?utf-8?B?SXhrREY2ei9zc3hyZWkyL1RtU29USGVLU1F2VDVibmJJeXBkand2bU1zNnhv?=
 =?utf-8?B?VlNPYXhsMlB5bUNBN2d3aHFuV2N6UjlRL1lxWjVOVWprdjhkOTlOK1I0NG9k?=
 =?utf-8?B?MkJrSXBIOWdNSUNhc3VDeWxKbkJadC9nZzNvaU9WU0ZWekFiRVRFK3NNMzNZ?=
 =?utf-8?B?YkpXeEFyWTFFcXFIditjeDk2Q090WC9CdWlFVzF2bTRoM1gzQkNtR0VORW9W?=
 =?utf-8?B?Vm9SSVpsWnR5YWRoV01GRnE4SEhqNGpsYXpzdElTbWRuWk52V0xadUd5b3dM?=
 =?utf-8?B?aGNYNWZYWEdraVhwM3VxNDhmYmh4ZHYvYkdZZW1mdUVhSXZ0ZkxJWUxTTnhi?=
 =?utf-8?B?ZHJmb3lDZEtmNFBURklCWDIwb2cxZkcreVVVVkNkS0I4Vm8vckVlcUxQNUEv?=
 =?utf-8?B?NldVMU1YaXMyT01DaEIveTF4VTlyRU9zMkxZdTJtK2k5bThxSHJHTUgrYWV4?=
 =?utf-8?B?amFrMGx1R3gzQ1pqdkY4QUpIenhPMUpFU1l0MzFDVjErYTN1VXdFZDZLdlY0?=
 =?utf-8?B?L0pncTZwVy9TN2J1VEIydzFPNFlYY3BFSGkzcTNhNWJKYXp2azhPRXRhQ1Z6?=
 =?utf-8?B?OVpXR0xvZEF5KzcyS1BwcGRtdm9sRXE5QWNaL0dRMCtkRWZ4WnFhbitSYVZY?=
 =?utf-8?B?OUs5bW1KaUpLQmpNZ0lTYjVmZm9nNzJteFgzMG9XdUxEL1hjN2ZXV0MxY29k?=
 =?utf-8?B?NnBVKzZMcHdrenl3Y3VsOTJMbU1FSnR4NTR0N1VTdGV2VFNlL3RsMlVTR1VW?=
 =?utf-8?B?SEJ2bVhIeWZESHZVL0ZiODdPVDBqdkVqTUkreTJQZFV3WTlDbDc4Smd5by9J?=
 =?utf-8?B?ZkNvUFhUSUtpTmgvb3pSTHJHSHZoNERrUkc2RnoxZ0ZRd0k2MFlvbDRSRlhQ?=
 =?utf-8?B?WG13QlBzNFYxNUhwZjhtcWlaUHAxL2ZIcXpKYlh2enpuOTFhNG50MFl0dU1u?=
 =?utf-8?B?d0lyYnpHVEhiZkdGV3k4VGt0b1N4ZXpCSjFPaEhjdE9CMDdqKzkyQ3NsZ0JK?=
 =?utf-8?B?TmNuVUF2ZDFyZHE4ai9lY0t5UERzM3ZBRTUzdjg4eEhkYWZzS0cwdHNZN1gr?=
 =?utf-8?B?bjdJYXhFK2NUVXYrVG9yTHFYRGFKMHROMXpjQXI2c0xJQVpieWt2L3ZUTU5P?=
 =?utf-8?B?ZFlZNFJvY2JzVS93NHI0TEx4cVR5WGdwbEdEcTFmeks3SlRyVFpmenBQblQ2?=
 =?utf-8?B?L0hrWHA0TkFvaGJqbGhzN1RoQ3hiN215dEVxU3RhTng4Q3AwK2RFcXBxcFhu?=
 =?utf-8?B?bXc0K0tTSFIwY2xLMWNBejQ4Y3lGY2oxRW5MU2NVUHBtUzBaVWZyV0xzVXdk?=
 =?utf-8?Q?x5vZGtB4aZDQTdFJ2vLpsikZY?=
Content-Type: text/plain; charset="utf-8"
Content-ID: <DDCEC5E8342C5347A80D04796D625AFE@namprd11.prod.outlook.com>
Content-Transfer-Encoding: base64
MIME-Version: 1.0
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: BN6PR11MB1953.namprd11.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 786523f7-7d52-4969-7a2c-08da81bb7b92
X-MS-Exchange-CrossTenant-originalarrivaltime: 19 Aug 2022 08:19:05.8254
 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 3f4057f3-b418-4d4e-ba84-d55b4e897d88
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: wbK3LG4YQ617o36wtbcxZdaHMAfATTlxibo8oDfCRpPATwosh/tsCTvrkYwK354CKdeodcyQOWDY7u/8iOquvLO6r3mFvnhTHe6QUglQv7s=
X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR11MB1706
X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIM_SIGNED,
        DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,NICE_REPLY_A,RCVD_IN_DNSWL_MED,
        SPF_HELO_PASS,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham
        autolearn_force=no version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on
        lindbergh.monkeyblade.net
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org
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