From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-170.mta1.migadu.com (out-170.mta1.migadu.com [95.215.58.170]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6104F3806A1 for ; Tue, 13 Jan 2026 17:40:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.170 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768326059; cv=none; b=t+1fvGA+yKZEqlTO1sK+Yj6EPWUeZ4IWX+zQyc8B2P8v4jjqBy82vxYWU5Nq6Sumh8QPaXc/+4o2Vaz2R7nAtUEhiNubtSBPGVMjGmKvIu9x4A1su2IxNwyMlBAHVTKmi5q6YoZV+nBz0Q28/A1rftvnpanhUxJke6SPsLO+t7M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768326059; c=relaxed/simple; bh=n97VTOdvtsXyr/Q5fPQ37wm/PFFvz3vwZ5nKjS7nYs0=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=Wj2pmXqPDAEPikcBRre/uaDHifGGNQWvoLIX6Tvtt2O5ZH5GD6YxjRFiaGwa03TErrIgu4JOkpjZsAVZG+H22CWRSOMddyJAMQ+A9qXRiLn6kRO1nfGTqKTnrlZilN9FU7/MSDj+6ZvzGliCkXom38jXEk/neWWBjUWk2ebHOIg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=kNm4l8Km; arc=none smtp.client-ip=95.215.58.170 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="kNm4l8Km" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1768326055; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=y5Id5jw0PxCohLGbXJZpkIwSQgvki7Uxpds+mx71CDQ=; b=kNm4l8KmrZaPNFXXUaCR/uI++k/Wy5xd/9XG/D2uAu3fpO2o5J4U8M/RJa+6W3zByebUnF +QuXp99BRVaDisoJiFzj9Sf2X/gup/3MA5IqkwIH1OIOcLGVsEm6mlRdLC6Y11oROqOuE6 ACj0H8e+kCuQWJWcHafRvtkEKc3+23c= From: wen.yang@linux.dev To: Joel Granados Cc: linux-kernel@vger.kernel.org, Wen Yang Subject: [RFC PATCH 0/4] sysctl: refactor ctl_table creation and change extra{1,2} type Date: Wed, 14 Jan 2026 01:40:29 +0800 Message-Id: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT From: Wen Yang This series introduces macros to centralize ctl_table initialization, preparing for future type changes to extra1/extra2 fields. Following Joel's suggestion [1], we start with helpers that work for all existing patterns before making invasive changes. This lays groundwork for eventually changing extra1/extra2 from void* to unsigned long. [1] https://lore.kernel.org/all/sytyqb3ajm6ysoifwp57ga7gzlnzodhdsbgizbn3hqnlwytn5a@pbscftrq2qwl/ Wen Yang (4): sysctl: add SYSCTL_ENTRY/SYSCTL_RANGE_ENTRY helpers for ctl_table init sysctl: add helper functions to extract table->extra1/extra2 sysctl: support encoding values directly in the table entry scripts/coccinelle: add sysctl_table_init.cocci include/linux/sysctl.h | 78 ++- kernel/sysctl-test.c | 273 +++++---- kernel/sysctl.c | 57 +- .../coccinelle/api/sysctl_table_init.cocci | 519 ++++++++++++++++++ 4 files changed, 779 insertions(+), 148 deletions(-) create mode 100644 scripts/coccinelle/api/sysctl_table_init.cocci -- 2.25.1