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Wysocki" , "Huang, Ray" , "linux-pm@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "x86@kernel.org" , "linux-acpi@vger.kernel.org" , Shuah Khan , "linux-kselftest@vger.kernel.org" , "Fontenot, Nathan" , "Sharma, Deepak" , "Deucher, Alexander" , "Limonciello, Mario" , "Huang, Shimmer" , "Yuan, Perry" , "Du, Xiaojian" , Viresh Kumar , Oleksandr Natalenko Subject: Re: [PATCH V12 1/7] x86: Drop CPU_SUP_INTEL from SCHED_MC_PRIO for the expansion. Message-ID: <20240110100402.GAZZ5rklxQUZk_KFV4@fat_crate.local> References: <20231205063537.872834-1-li.meng@amd.com> <20231205063537.872834-2-li.meng@amd.com> <20240109104504.GAZZ0jsFrrncZ8Vx8y@fat_crate.local> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: On Wed, Jan 10, 2024 at 06:59:25AM +0000, Meng, Li (Jassmine) wrote: > The reason why I added the selects is just to distinguish different > pstate drivers. These two drivers cannot be supported simultaneously > in the same project. No, that's not what I meant. Read here: "- reverse dependencies: "select" ["if" ] While normal dependencies reduce the upper limit of a symbol (see below), reverse dependencies can be used to force a lower limit of another symbol. The value of the current menu symbol is used as the minimal value can be set to. If is selected multiple times, the limit is set to the largest selection. Reverse dependencies can only be used with boolean or tristate symbols. Note: select should be used with care. select will force a symbol to a value without visiting the dependencies. By abusing select you are able to select a symbol FOO even if FOO depends on BAR that is not set. In general use select only for non-visible symbols (no prompts anywhere) and for symbols with no dependencies. That will limit the usefulness but on the other hand avoid the illegal configurations all over." From Documentation/kbuild/kconfig-language.rst -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette