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[209.132.180.67]) by mx.google.com with ESMTP id u190si21182238pgd.547.2019.07.08.15.40.55; Mon, 08 Jul 2019 15:41:09 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@web.de header.s=dbaedf251592 header.b=lm08k5m6; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2403898AbfGHPpH (ORCPT + 99 others); Mon, 8 Jul 2019 11:45:07 -0400 Received: from mout.web.de ([212.227.15.14]:43569 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732408AbfGHPpG (ORCPT ); Mon, 8 Jul 2019 11:45:06 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1562600662; bh=0pUynszGTiwe+CvTdyKDl8scMsMcbRIhObXKLVjYKj0=; h=X-UI-Sender-Class:Subject:To:Cc:References:From:Date:In-Reply-To; b=lm08k5m6E1V87wS1lT9p++06UNU0NIFevN5wpAJbbRmLpBzSs8ej+XO0Tc9AgF4uH wpe6TYxclWFJFqgbn5GsD7sc8LtVRG1/7/AmD8Qvz6vMxx2lsWwU9KOW2lgVd09CHO AzARvbOUe+BSSI55/PtQhfXAHHQ7OTLAEuoJc/RE= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.1.2] ([2.243.165.233]) by smtp.web.de (mrweb004 [213.165.67.108]) with ESMTPSA (Nemesis) id 0M9dCJ-1heA2535g7-00CvSw; Mon, 08 Jul 2019 17:44:22 +0200 Subject: Re: sched/topology: One function call less in build_group_from_child_sched_domain() To: Srikar Dronamraju , kernel-janitors@vger.kernel.org Cc: Peter Zijlstra , Ingo Molnar , LKML References: <20190706172223.GA12680@linux.vnet.ibm.com> <20190708102312.GF3402@hirez.programming.kicks-ass.net> <20190708140751.GA10675@linux.vnet.ibm.com> From: Markus Elfring Openpgp: preference=signencrypt Autocrypt: addr=Markus.Elfring@web.de; prefer-encrypt=mutual; keydata= mQINBFg2+xABEADBJW2hoUoFXVFWTeKbqqif8VjszdMkriilx90WB5c0ddWQX14h6w5bT/A8 +v43YoGpDNyhgA0w9CEhuwfZrE91GocMtjLO67TAc2i2nxMc/FJRDI0OemO4VJ9RwID6ltwt mpVJgXGKkNJ1ey+QOXouzlErVvE2fRh+KXXN1Q7fSmTJlAW9XJYHS3BDHb0uRpymRSX3O+E2 lA87C7R8qAigPDZi6Z7UmwIA83ZMKXQ5stA0lhPyYgQcM7fh7V4ZYhnR0I5/qkUoxKpqaYLp YHBczVP+Zx/zHOM0KQphOMbU7X3c1pmMruoe6ti9uZzqZSLsF+NKXFEPBS665tQr66HJvZvY GMDlntZFAZ6xQvCC1r3MGoxEC1tuEa24vPCC9RZ9wk2sY5Csbva0WwYv3WKRZZBv8eIhGMxs rcpeGShRFyZ/0BYO53wZAPV1pEhGLLxd8eLN/nEWjJE0ejakPC1H/mt5F+yQBJAzz9JzbToU 5jKLu0SugNI18MspJut8AiA1M44CIWrNHXvWsQ+nnBKHDHHYZu7MoXlOmB32ndsfPthR3GSv jN7YD4Ad724H8fhRijmC1+RpuSce7w2JLj5cYj4MlccmNb8YUxsE8brY2WkXQYS8Ivse39MX BE66MQN0r5DQ6oqgoJ4gHIVBUv/ZwgcmUNS5gQkNCFA0dWXznQARAQABtCZNYXJrdXMgRWxm cmluZyA8TWFya3VzLkVsZnJpbmdAd2ViLmRlPokCVAQTAQgAPhYhBHDP0hzibeXjwQ/ITuU9 Figxg9azBQJYNvsQAhsjBQkJZgGABQsJCAcCBhUICQoLAgQWAgMBAh4BAheAAAoJEOU9Figx g9azcyMP/iVihZkZ4VyH3/wlV3nRiXvSreqg+pGPI3c8J6DjP9zvz7QHN35zWM++1yNek7Ar OVXwuKBo18ASlYzZPTFJZwQQdkZSV+atwIzG3US50ZZ4p7VyUuDuQQVVqFlaf6qZOkwHSnk+ CeGxlDz1POSHY17VbJG2CzPuqMfgBtqIU1dODFLpFq4oIAwEOG6fxRa59qbsTLXxyw+PzRaR LIjVOit28raM83Efk07JKow8URb4u1n7k9RGAcnsM5/WMLRbDYjWTx0lJ2WO9zYwPgRykhn2 sOyJVXk9xVESGTwEPbTtfHM+4x0n0gC6GzfTMvwvZ9G6xoM0S4/+lgbaaa9t5tT/PrsvJiob kfqDrPbmSwr2G5mHnSM9M7B+w8odjmQFOwAjfcxoVIHxC4Cl/GAAKsX3KNKTspCHR0Yag78w i8duH/eEd4tB8twcqCi3aCgWoIrhjNS0myusmuA89kAWFFW5z26qNCOefovCx8drdMXQfMYv g5lRk821ZCNBosfRUvcMXoY6lTwHLIDrEfkJQtjxfdTlWQdwr0mM5ye7vd83AManSQwutgpI q+wE8CNY2VN9xAlE7OhcmWXlnAw3MJLW863SXdGlnkA3N+U4BoKQSIToGuXARQ14IMNvfeKX NphLPpUUnUNdfxAHu/S3tPTc/E/oePbHo794dnEm57LuuQINBFg2+xABEADZg/T+4o5qj4cw nd0G5pFy7ACxk28mSrLuva9tyzqPgRZ2bdPiwNXJUvBg1es2u81urekeUvGvnERB/TKekp25 4wU3I2lEhIXj5NVdLc6eU5czZQs4YEZbu1U5iqhhZmKhlLrhLlZv2whLOXRlLwi4jAzXIZAu 76mT813jbczl2dwxFxcT8XRzk9+dwzNTdOg75683uinMgskiiul+dzd6sumdOhRZR7YBT+xC wzfykOgBKnzfFscMwKR0iuHNB+VdEnZw80XGZi4N1ku81DHxmo2HG3icg7CwO1ih2jx8ik0r riIyMhJrTXgR1hF6kQnX7p2mXe6K0s8tQFK0ZZmYpZuGYYsV05OvU8yqrRVL/GYvy4Xgplm3 DuMuC7/A9/BfmxZVEPAS1gW6QQ8vSO4zf60zREKoSNYeiv+tURM2KOEj8tCMZN3k3sNASfoG fMvTvOjT0yzMbJsI1jwLwy5uA2JVdSLoWzBD8awZ2X/eCU9YDZeGuWmxzIHvkuMj8FfX8cK/ 2m437UA877eqmcgiEy/3B7XeHUipOL83gjfq4ETzVmxVswkVvZvR6j2blQVr+MhCZPq83Ota xNB7QptPxJuNRZ49gtT6uQkyGI+2daXqkj/Mot5tKxNKtM1Vbr/3b+AEMA7qLz7QjhgGJcie qp4b0gELjY1Oe9dBAXMiDwARAQABiQI8BBgBCAAmFiEEcM/SHOJt5ePBD8hO5T0WKDGD1rMF Alg2+xACGwwFCQlmAYAACgkQ5T0WKDGD1rOYSw/+P6fYSZjTJDAl9XNfXRjRRyJSfaw6N1pA Ahuu0MIa3djFRuFCrAHUaaFZf5V2iW5xhGnrhDwE1Ksf7tlstSne/G0a+Ef7vhUyeTn6U/0m +/BrsCsBUXhqeNuraGUtaleatQijXfuemUwgB+mE3B0SobE601XLo6MYIhPh8MG32MKO5kOY hB5jzyor7WoN3ETVNQoGgMzPVWIRElwpcXr+yGoTLAOpG7nkAUBBj9n9TPpSdt/npfok9ZfL /Q+ranrxb2Cy4tvOPxeVfR58XveX85ICrW9VHPVq9sJf/a24bMm6+qEg1V/G7u/AM3fM8U2m tdrTqOrfxklZ7beppGKzC1/WLrcr072vrdiN0icyOHQlfWmaPv0pUnW3AwtiMYngT96BevfA qlwaymjPTvH+cTXScnbydfOQW8220JQwykUe+sHRZfAF5TS2YCkQvsyf7vIpSqo/ttDk4+xc Z/wsLiWTgKlih2QYULvW61XU+mWsK8+ZlYUrRMpkauN4CJ5yTpvp+Orcz5KixHQmc5tbkLWf x0n1QFc1xxJhbzN+r9djSGGN/5IBDfUqSANC8cWzHpWaHmSuU3JSAMB/N+yQjIad2ztTckZY pwT6oxng29LzZspTYUEzMz3wK2jQHw+U66qBFk8whA7B2uAU1QdGyPgahLYSOa4XAEGb6wbI FEE= Message-ID: Date: Mon, 8 Jul 2019 17:44:13 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.2 MIME-Version: 1.0 In-Reply-To: <20190708140751.GA10675@linux.vnet.ibm.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-GB X-Provags-ID: V03:K1:SmpCSCit4blAu54s1a/FftGyUr8QJeyydlBzzwUXy6tIEQ70Ks7 9Sn0RSkfbs6T9GzKHm4H/raSqUsC2MlYyukWqLJcnDeMIVd3tr8ti3VYWmkfpa1NdFaCKdf zYqO8X69p977Ouxj60Wm5CRHJZCj9Dhf5uMK9CdgnQ4eWHTvMqXZFskv/zLLwFIQ8MvFu5p 5pSrq4yngqO26DNHDmyXQ== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:JlB7OxZmBVU=:ZGmPyqPHb6pxzLzM2VL/Zf wpTzH/XAQ3VaLLvsyOgPx24Lxr0oyANGr0T/ZzSHYpkYxq4Ouwyd7lkUeKbUf7NVbbmqw1m0u BQR80IYBnx+ctKecJzN9crw4zwIRTKPPoFRbGLpR7vNrJwb8YEZoLsOzqpLzg80bMOmcEcw+k bbxqMKQcA/WN6f+nUlXguHVTQfjLhF/IMYkOPqRIMTTTEkdItE17ZfKudAz4V/Vz1+9dgnAQa qduOu2GY9Bp7Q75TaORMsq66eRswEd+5bEFg0YS4gbNitkoPLkrjCBjL1ZUzphDH+yGoMgD/s NiIGBbEw5vGy9gUjtxdjktklcy2B/yawHpVRpNR0LjivwU8PH8uAjFdwvt+SzkbqEYaCJUc5p 2IEdBt7JeTNiemPq8XXlbb23GveEA4ICD0Te4Xbn3fV7LMbxrYRv3vlNJAD8PbQyxM8tYVDow KRS1lAEm1VSi/jqSGRwt5VuszSk4NoqtWau7Q9XygR2Vp2fPUaY6GKVy9+i4jtYAoHrDwXVcd lbBuap/9DMiZPyTLRtwyFhcbYxM4cKJKdxVwCLu6R5YWgCJ0v4+/dLzkE0ciPtQBFZT13J4OO UdaT0NIkd5hNecpFR3HjtecxCdAAPeYQ+x5oA36ZZV4T+iZx3rjKsqAUP6ea2fRllouZ2iKVj npEfta91kXnPcVIJ5hGeRbGeTVE41gX4yWWeedFUOVZfgbDc8flSufWVAY7h5phf2Ru01vhGJ M419c2cab0jDNDMNgLXZK078qQ9Slwkz0FuSsK/ElM/mQ99jsgxtca4bJfF786fgZWP1XJ7ki EzRPFCes3JT76ePQqMhkaWE27yb6U9hVQbczbKtADq9IU73SL3wvG0OpzzzF7Uy6EJXYHsro8 VerU7u6ITyhV23VdGioLy7EQ6+vTNAdouMfS1R5IfmAPCMj1wta9Uslb2No/msAn2sn/fd2sT 35kTgXHHXfxlIdO/25OfZULEIaBqgNQh8xv+fBcI4kYtokfdqi5mFcqp7FfuUjSQYNJgQ1AVM G4+WmQJfpbGBB7/aUsAm6UH2Y1cqDPu4w6aWjvKwfgyf+18f9OGNimgWg+ipYJxzp5OZtk5lu AAy8S1C8KuzFZMF6VI1HfAC7pQSaYLtJy+K Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > Yes, it definitely makes code readable. Some developers seem to get difficulties with this view. > I was only commenting on the changelog/subject which says > avoids a function call which I think it doesn't. Do you prefer an other wording for calling functions only once with a selected parameter value instead of calling them (unoptimised) within two branches of an if statement? Regards, Markus