From patchwork Thu Oct 10 15:24:42 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ira Weiny X-Patchwork-Id: 13830418 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.18]) (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 859EF15CD49; Thu, 10 Oct 2024 15:25:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.18 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728573907; cv=none; b=fAoAymH8daicJd7Cul0bq8ReNsvHMe6mvFgXrhiVJC0aDemOvPAA+X3NIXIQwYqmgjFUFEpW9A0lLKdRvCGGnEm6WFVmxp9ws0vigu3q65kUdA0Cj45jljqyfyPpyj+SdiTvJEU1fLwOeMH/rhXHrbHzm5m6vHvrDNKYW3sVos4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728573907; c=relaxed/simple; bh=wFjscxoz6XvnCiqFK6/8lNfUYxSfnBY637sI6B7vS4c=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=oYboE6ICItxkdEPUlFw3mz8/E0pBJokzfuGEbUWyiIdkd0ihqR+Syg0kj7jLoHz/DAAFgDEFfeyxN1ScJ2fczc7eMh8yYwVIAOttK4dXcjdxF6LU+WFMu87SKwDoRJZLVWvZng85GNdV60Toq2FgloxHGiVhAd2vanRDufgMEi8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=ijQAlkb7; arc=none smtp.client-ip=192.198.163.18 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="ijQAlkb7" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1728573906; x=1760109906; h=from:date:subject:mime-version:content-transfer-encoding: message-id:to:cc; bh=wFjscxoz6XvnCiqFK6/8lNfUYxSfnBY637sI6B7vS4c=; b=ijQAlkb7ClS9Z5cdZHxFk38r9Qmd3ppfZoJgBWxKUXLGi+Be7FXzBPYl szLgVDd6HzgUulCYkv1Aroa/mpYip12nI4yPLlHSlwXKjgzEcANUM3iOB fZ7mFSQvqP8oNIjwX9wPNkJL212LKH6wBqRjQdsUU+yme+Lvj4gZUd+kE l0wxmzHejKghJ8Juj3JM3g5gprSbT4nej8iqV4mtZazTgKT8S2qcikAlr RcRNJQ//2CVsF96vvaou2DtQHqPn90NFMM8gd8dm3XSDEPFcyuCCnlu2z 5I8JE/Wavvyr+o+IuEC7RrgQG4ebpXyhECtAhJ6fF1iDO6U6Plac7sFj7 w==; X-CSE-ConnectionGUID: OaB6hE6XTeyHIYZVKVV/TA== X-CSE-MsgGUID: F+kvOhD1TXmlh2ssNOEnHg== X-IronPort-AV: E=McAfee;i="6700,10204,11220"; a="27387427" X-IronPort-AV: E=Sophos;i="6.11,193,1725346800"; d="scan'208";a="27387427" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by fmvoesa112.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Oct 2024 08:24:56 -0700 X-CSE-ConnectionGUID: 6uFVnloDRVycPF6k+JgZ7A== X-CSE-MsgGUID: 1qWbc55LTfWwjqvNQ4dH2g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,193,1725346800"; d="scan'208";a="81148916" Received: from vverma7-desk1.amr.corp.intel.com (HELO localhost) ([10.125.111.61]) by fmviesa005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Oct 2024 08:24:55 -0700 From: Ira Weiny Date: Thu, 10 Oct 2024 10:24:42 -0500 Subject: [PATCH] kernel/range: Const-ify range_contains parameters Precedence: bulk X-Mailing-List: linux-cxl@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241010-const-range-v1-1-afb6e4bfd8ce@intel.com> X-B4-Tracking: v=1; b=H4sIALnxB2cC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE vPSU3UzU4B8JSMDIxNDAwNL3eT8vOIS3SKwlLGpibmphYFxooWRiRJQR0FRalpmBdi06NjaWgD Y7v7lXQAAAA== To: David Sterba , Chris Mason , Josef Bacik Cc: linux-btrfs@vger.kernel.org, linux-cxl@vger.kernel.org, linux-kernel@vger.kernel.org, David Sterba , Ira Weiny X-Mailer: b4 0.15-dev-37811 X-Developer-Signature: v=1; a=ed25519-sha256; t=1728573887; l=1083; i=ira.weiny@intel.com; s=20221211; h=from:subject:message-id; bh=wFjscxoz6XvnCiqFK6/8lNfUYxSfnBY637sI6B7vS4c=; b=tABY1h4widKOwrxP2fxhnTlcjE0XKWwrYz2BYyT6o74nNEZwbTG6aIwwYkayhTKdH/eDjumWZ 1CdxjjawaySAeMoOntpAT/2HvvIA7/1i0daM0Zn4iOaTbibeuvxU43M X-Developer-Key: i=ira.weiny@intel.com; a=ed25519; pk=noldbkG+Wp1qXRrrkfY1QJpDf7QsOEthbOT7vm0PqsE= range_contains() does not modify the range values. David suggested it is safer to keep those parameters as const.[1] Make range parameters const Link: https://lore.kernel.org/all/20241008161032.GB1609@twin.jikos.cz/ [1] Suggested-by: David Sterba Signed-off-by: Ira Weiny Reviewed-by: Dan Williams Reviewed-by: David Sterba --- include/linux/range.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- base-commit: 27cc6fdf720183dce1dbd293483ec5a9cb6b595e change-id: 20241009-const-range-35475803a824 Best regards, diff --git a/include/linux/range.h b/include/linux/range.h index 6ad0b73cb7ad..7dc5e835e079 100644 --- a/include/linux/range.h +++ b/include/linux/range.h @@ -13,7 +13,8 @@ static inline u64 range_len(const struct range *range) return range->end - range->start + 1; } -static inline bool range_contains(struct range *r1, struct range *r2) +static inline bool range_contains(const struct range *r1, + const struct range *r2) { return r1->start <= r2->start && r1->end >= r2->end; }