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McKenney" , Vlastimil Babka , Dmitry Vyukov , Valentin Schneider , Sander Vanheule , Alexey Klimov , Eric Biggers Cc: Yury Norov Subject: [PATCH v3] cpumask: limit visibility of FORCE_NR_CPUS Date: Wed, 16 Nov 2022 09:24:51 -0800 Message-Id: <20221116172451.274938-1-yury.norov@gmail.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS 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: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1749675572242423073?= X-GMAIL-MSGID: =?utf-8?q?1749675572242423073?= In current form, FORCE_NR_CPUS is visible to all users building their kernels, even not experts. It is also set in allmodconfig or allyesconfig, which is not a correct behavior. This patch fixes it. It also changes the parameter short description: removes implementation details and highlights the effect of the change. Suggested-by: Geert Uytterhoeven Suggested-by: Linus Torvalds Signed-off-by: Yury Norov Reviewed-by: Valentin Schneider --- v3: instead of 'choice', use !COMPILE_TEST to disable FORCE_NR_CPUS in all{yes,mod}config, as suggested by Linus. lib/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/Kconfig b/lib/Kconfig index 9bbf8a4b2108..404647cd3fac 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -529,8 +529,8 @@ config CPUMASK_OFFSTACK stack overflow. config FORCE_NR_CPUS - bool "NR_CPUS is set to an actual number of CPUs" - depends on SMP + bool "Set number of CPUs at compile time" + depends on SMP && EXPERT && !COMPILE_TEST help Say Yes if you have NR_CPUS set to an actual number of possible CPUs in your system, not to a default value. This forces the core