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[94.29.46.111]) by smtp.googlemail.com with ESMTPSA id o15sm1323059lfd.164.2021.11.29.03.52.33 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 29 Nov 2021 03:52:35 -0800 (PST) Subject: Re: [PATCH v4 08/25] kernel: Add combined power-off+restart handler call chain API To: =?UTF-8?B?TWljaGHFgiBNaXJvc8WCYXc=?= Cc: Thierry Reding , Jonathan Hunter , Russell King , Catalin Marinas , Will Deacon , Guo Ren , Geert Uytterhoeven , Greg Ungerer , Joshua Thompson , Thomas Bogendoerfer , Sebastian Reichel , Linus Walleij , Philipp Zabel , Greentime Hu , Vincent Chen , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Yoshinori Sato , Rich Felker , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , "Rafael J. Wysocki" , Len Brown , Santosh Shilimkar , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Pavel Machek , Lee Jones , Andrew Morton , Guenter Roeck , Daniel Lezcano , Andy Shevchenko , Ulf Hansson , alankao@andestech.com, "K . C . Kuen-Chern Lin" , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org References: <20211126180101.27818-1-digetx@gmail.com> <20211126180101.27818-9-digetx@gmail.com> <9213569e-0f40-0df1-4710-8dab564e12d6@gmail.com> <1fa2d9d5-f5f6-77f5-adf6-827921acce49@gmail.com> From: Dmitry Osipenko Message-ID: <33d1dfa7-e90e-d174-7375-836c15e7f818@gmail.com> Date: Mon, 29 Nov 2021 14:52:25 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.14.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211129_035238_366093_859AF477 X-CRM114-Status: GOOD ( 24.27 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org MjkuMTEuMjAyMSAwMzozNiwgTWljaGHFgiBNaXJvc8WCYXcg0L/QuNGI0LXRgjoKPiBPbiBNb24s IE5vdiAyOSwgMjAyMSBhdCAxMjo1Mzo1MUFNICswMzAwLCBEbWl0cnkgT3NpcGVua28gd3JvdGU6 Cj4+IDI5LjExLjIwMjEgMDA6MTcsIE1pY2hhxYIgTWlyb3PFgmF3INC/0LjRiNC10YI6Cj4+Pj4g SSdtIGhhdmluZyB0cm91YmxlIHdpdGggcGFyc2luZyB0aGlzIGNvbW1lbnQuIENvdWxkIHlvdSBw bGVhc2UgdHJ5IHRvCj4+Pj4gcmVwaHJhc2UgaXQ/IEkgZG9uJ3Qgc2VlIGhvdyB5b3UgY291bGQg Y2hlY2sgd2hldGhlciBwb3dlci1vZmYgaGFuZGxlcgo+Pj4+IGlzIGF2YWlsYWJsZSBpZiB5b3Un bGwgbWl4IGFsbCBoYW5kbGVycyB0b2dldGhlci4KPj4+IElmIG5vdGlmeV9jYWxsX2NoYWluKCkg d291bGQgYmUgZml4ZWQgdG8gcmV0dXJuIE5PVElGWV9PSyBpZiBhbnkgY2FsbAo+Pj4gcmV0dXJu ZWQgTk9USUZZX09LLCB0aGVuIHRoaXMgd291bGQgYmUgYSBjbGVhciB3YXkgdG8gZ2F0aGVyIHRo ZQo+Pj4gYW5zd2VyIGlmIGFueSBvZiB0aGUgaGFuZGxlcnMgd2lsbCBhdHRlbXB0IHRoZSBmaW5h bCBhY3Rpb24gKHJlYm9vdCBvcgo+Pj4gcG93ZXIgb2ZmKS4KPj4gQ291bGQgeW91IHBsZWFzZSBz aG93IGEgY29kZSBzbmlwcGV0IHRoYXQgaW1wbGVtZW50cyB5b3VyIHN1Z2dlc3Rpb24/Cj4gCj4g QSByb3VnaCBpZGVhIGlzIHRoaXM6Cj4gCj4gIHN0YXRpYyBpbnQgbm90aWZpZXJfY2FsbF9jaGFp bihzdHJ1Y3Qgbm90aWZpZXJfYmxvY2sgKipubCwKPiAgCQkJICAgICAgIHVuc2lnbmVkIGxvbmcg dmFsLCB2b2lkICp2LAo+ICAJCQkgICAgICAgaW50IG5yX3RvX2NhbGwsIGludCAqbnJfY2FsbHMp Cj4gIHsKPiAtCWludCByZXQgPSBOT1RJRllfRE9ORTsKPiArCWludCByZXQsIHJlc3VsdCA9IE5P VElGWV9ET05FOwo+ICAJc3RydWN0IG5vdGlmaWVyX2Jsb2NrICpuYiwgKm5leHRfbmI7Cj4gIAo+ ICAJbmIgPSByY3VfZGVyZWZlcmVuY2VfcmF3KCpubCk7Cj4gIAo+ICAJd2hpbGUgKG5iICYmIG5y X3RvX2NhbGwpIHsKPiAuLi4KPiAgCQlyZXQgPSBuYi0+bm90aWZpZXJfY2FsbChuYiwgdmFsLCB2 KTsKPiArCj4gKwkJLyogQXNzdW1pbmcgTk9USUZZX1NUT1AtY2FycnlpbmcgcmV0dXJuIGlzIGFs d2F5cyBncmVhdGVyIHRoYW4gbm9uLXN0b3BwaW5nIG9uZS4gKi8KPiArCQlpZiAocmVzdWx0IDwg cmV0KQo+ICsJCQlyZXN1bHQgPSByZXQ7Cj4gLi4uIAo+ICAJfQo+IC0JcmV0dXJuIHJldDsKPiAr CXJldHVybiByZXN1bHQ7Cj4gIH0KPiAKPiBUaGVuOgo+IAo+IGJvb2wgcHJlcGFyZV9yZWJvb3Qo KQo+IHsKPiAJaW50IHJldCA9IHh4X25vdGlmaWVyX2NhbGxfY2hhaW4oJnNodXRkb3duX25vdGlm aWVyLCBQUkVQQVJFX1JFQk9PVCwgLi4uKTsKPiAJcmV0dXJuIHJldCA9PSBOT1RJRllfT0s7Cj4g fQo+IAo+IEFuZCB0aGUgcmV0dXJuIHZhbHVlIHdvdWxkIHNpZ25pZnkgd2hldGhlciB0aGUgcmVi b290IHdpbGwgYmUgYXR0ZW1wdGVkCj4gd2hlbiBjYWxsaW5nIHRoZSBjaGFpbiBmb3IgdGhlIFJF Qk9PVCBhY3Rpb24uIChBbmFsb2dvdXNseSBmb3IgcG93ZXJpbmcgb2ZmLikKCklmIHlvdSBzdGFy dGVkIHRvIGV4ZWN1dGUgY2FsbCBjaGFpbiwgdGhlbiB5b3UgYmVnYW4gdGhlIHBvd2VyLW9mZiAv CnJlc3RhcnQgc2VxdWVuY2UsIHRoaXMgaXMgYSBwb2ludCBvZiBubyByZXR1cm4uIFNvcnJ5LCBJ IHN0aWxsIGRvbid0CnVuZGVyc3RhbmQgd2hhdCB5b3UncmUgdHJ5aW5nIHRvIGFjaGlldmUuCgpU aGUgYXBwcm9hY2ggb2YgaGF2aW5nIHNlcGFyYXRlIGNhbGwgY2hhaW5zIGlzIHNpbXBsZSBhbmQg aW50dWl0aXZlLCBJCmRvbid0IHNlZSByZWFzb25zIHRvIGNoYW5nZSBpdC4KCl9fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LXJpc2N2IG1haWxpbmcg bGlzdApsaW51eC1yaXNjdkBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRl YWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtcmlzY3YK