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AFNElJ8M2156pMu+ZMpW9oJEghvN87U9ajAuok5+zFSYH6/vA+Q6aJVKJSrWFwpkiqjTcvk6A3Q2LoWxRQ==@kvack.org X-Gm-Message-State: AOJu0YxzhPsDmxmoHaP6gVM4EFZ8gdRfbE12rmbJqdXCLvSzKK1AGkiq YCsJMzjxWqJjpTJipFYme8yZTpr9fep2NE1U/0VU50pLZNC3tQqXW3ATBqA5plb1P1q0RdixpGC o/ARFl+jnWNgFWr3/rg== X-Received: from edup20.prod.google.com ([2002:a05:6402:10d4:b0:68d:af88:b33b]) (user=aliceryhl job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6402:3222:b0:68b:a17a:f368 with SMTP id 4fb4d7f45d1cf-69377c11e90mr87675a12.0.1781218852922; Thu, 11 Jun 2026 16:00:52 -0700 (PDT) Date: Thu, 11 Jun 2026 23:00:51 +0000 In-Reply-To: <20260610220905.99860-1-enelsonmoore@gmail.com> Mime-Version: 1.0 References: <20260610220905.99860-1-enelsonmoore@gmail.com> Message-ID: Subject: Re: [PATCH] maple_tree: remove undocumented CONFIG_MAPLE_RCU_DISABLED macro From: Alice Ryhl To: Ethan Nelson-Moore Cc: Andrew Ballance , maple-tree@lists.infradead.org, linux-mm@kvack.org, "Liam R. Howlett" Content-Type: text/plain; charset="utf-8" X-Rspamd-Queue-Id: 055BB1C000E X-Stat-Signature: upsx5dpy8baqads8ggkzspkb4mzuw33a X-Rspamd-Server: rspam03 X-Rspam-User: X-HE-Tag: 1781218854-261906 X-HE-Meta: U2FsdGVkX18nkNz4UaOHnH5yEnNfB/IEtkyfW3v/W7DN7kfYLFxKCT6GRDOJKfsmftw4vKWdk5462d4nv/M7Y658h970/p5xf9uWFXMePgaEJihRQiuH/XoVXXG3EvAVIO1JNXOdAFwMdvEriMBtD8aXSyK0EjJ2tk50zrqluOhtdpWj0mF+98A3oY7MCzmi8ZSS+C3THtrn+wRHUPJHWw6EL6Gvkkf7FnK5idNUL35K8E7PkU3U16TIn4u6CgSIrSXaApP/GcSP03+ryWhf+GCsA3sViI3aWhkjn94gIaDZHx3lVW86OPZ6gcEclChL+JWRP7oi0B+2DTwWGqCJSAnbDUD7Nvs4blf3v0o3kCyc+HB45uGn5gKTxyoKTK3HwN6RlKkAgG4lO48lWy0/FOCbWVEIGPSZ+aAI69/IZO+QJkj3m3rLc+mUlSaTAOH4te+QFgZNIEgRBu549scg4dMDiTwOnsfg5Ze0B7PIVHtbn0RbRphmhAve1nSNHHpqO//vjZDo7qlmqUocDaoZtEZgjhdrfR5WLVfCHACJpq/ejNVjwc6GRAgJuiohc/sKNvfpFhrI4D4MyvPcBDg7+5g5d7g9lb4u+SNsDnGCbGZY3u/E98GhCKY8Z6VzaKMLpDKTJsjyEcoDVdXsn1BW7WZbI8eRDE65434HQhfN+I4YK+VBkw2NmPK9Zcpv5ONXRP7l0fNg56jI3sBeM/eObzhyVd0M7BZa47RBSmGK2gZbGwdYZ/MX4HFmd17nv7m3Ve+A7wHxNx4PXirhd8EQ7cyMyDQ5KQBLy6Fr7r5/f/KPoEal4V8qQjj2myr4CVrEMKVC8ZRVThqxOHJR4P7sGxTm4NBexOUPrCZwygdeHy9d/GFFjfJC9+UJhhVk/FgbFfD0iIkv4c3NQO/4ey4LHrfDhfPAbqnu9Xf7PFEQ6pjF5apX40E9j1zm264Wyfu9kA22bt1XmBQLTjv3SQw pjO6W3pu 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, Jun 10, 2026 at 03:09:04PM -0700, Ethan Nelson-Moore wrote: > consults the macro CONFIG_MAPLE_RCU_DISABLED to > determine whether to disable the mt_in_rcu() function (by making it > always return false). This macro is not reachable via Kconfig, despite > its name, and is not documented anywhere. Remove it to avoid polluting > the CONFIG_* namespace. > > Discovered while searching for CONFIG_* symbols referenced in code but > not defined in any Kconfig file. > > Signed-off-by: Ethan Nelson-Moore Reviewed-by: Alice Ryhl