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b=LNSPxtcIT+quFnMch+1xRe99sSi2+AhhMvgDgUtHtkPqDjHwmeMNVqFGGBKFQF3YT PLvYOAVUgt+EsFLGPeZo3oh8iJ0nLWEkATaGqBjDu2pu/UauFkyGvbUG6a9eG9a03X P7YzeTbU+axLToXgOtAIIb4cpHgdqfhDaNgXtm8xRd+q87oBJ4V42Ol/xgmQAhebyC iYr0HvYbPqk8KOB9Rz71WVSvX572uSNv17ZoYEVSFX/ISWfEaTWjVs6czgYKtJLmSJ zLULHCG2Ct8W3Pi1qloDBzglAV8eNW5qlWv23gdz49f6HF9boFblxeP5fzXY3/fmCo MeE9c8uW2V9jA== Message-ID: <55a5e3f3-1b3f-469b-bde0-69abfff826e4@kernel.org> Date: Thu, 20 Mar 2025 08:13:24 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 12/16] arm64: add KHO support To: Changyuan Lyu , linux-kernel@vger.kernel.org Cc: graf@amazon.com, akpm@linux-foundation.org, luto@kernel.org, anthony.yznaga@oracle.com, arnd@arndb.de, ashish.kalra@amd.com, benh@kernel.crashing.org, bp@alien8.de, catalin.marinas@arm.com, dave.hansen@linux.intel.com, dwmw2@infradead.org, ebiederm@xmission.com, mingo@redhat.com, jgowans@amazon.com, corbet@lwn.net, rppt@kernel.org, mark.rutland@arm.com, pbonzini@redhat.com, pasha.tatashin@soleen.com, hpa@zytor.com, peterz@infradead.org, ptyadav@amazon.de, robh+dt@kernel.org, robh@kernel.org, saravanak@google.com, skinsburskii@linux.microsoft.com, rostedt@goodmis.org, tglx@linutronix.de, thomas.lendacky@amd.com, usama.arif@bytedance.com, will@kernel.org, devicetree@vger.kernel.org, kexec@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, x86@kernel.org References: <20250320015551.2157511-1-changyuanl@google.com> <20250320015551.2157511-13-changyuanl@google.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: F3D3B40002 X-Stat-Signature: qm9rkqtmix4gqe1ay5qgsio3mww59onb X-HE-Tag: 1742454820-673905 X-HE-Meta: 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 AKlKg4A0 NabScqsZ5zlVV3mxrmNao3Im8cb7K7OuIwndT7Kqc2lAD9Gn14P9SSuK8ntHfcQxMAwbo5WB483e0a4KdcFP9O0AZ5ipFjJXFA/aWEXWUDKJxBRcbLTsMobhsuv0O51Q03e7aixNqEEeqBgpqxDNiyFZJZ9eJ7pH4nxG+Lv9ZDHhKpV/wrGOYr/c+mJNnRruCcMqFtWg4VUpWixZfThrXu3eFlTy7wXS/SbZjLsk4eKfH9F/mEDs5sFc022hwniPfroXotL9E39Z3HfXLcUUt7lHrLW9VrIibsLeuOt4Vb9Ful6yOpCWXkgIkF5PokECq6nf4ztZ4WxiTqn0= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 20/03/2025 02:55, Changyuan Lyu wrote: > > +/** > + * early_init_dt_check_kho - Decode info required for kexec handover from DT > + */ > +static void __init early_init_dt_check_kho(void) > +{ > + unsigned long node = chosen_node_offset; > + u64 kho_start, scratch_start, scratch_size; > + const __be32 *p; > + int l; > + > + if (!IS_ENABLED(CONFIG_KEXEC_HANDOVER) || (long)node < 0) > + return; > + > + p = of_get_flat_dt_prop(node, "linux,kho-fdt", &l); You are adding undocumented ABI for OF properties. That's not what was explained last time. NAK. Best regards, Krzysztof