From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 88AF2CCD18B for ; Mon, 6 Oct 2025 12:16:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:CC:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=M14+Hrw3+0xfvL7LtAKdftp5KA5xdtXGebEkX3FEMMU=; b=Ror1U6lt/MBHOL96C0lMPH0T4L secwNZ44abL0Xj+rvyOvZu+xp/QANXfFbsgUrB90brwxuGBla45qccpsd/5gdW3TmKGksYoUTSA9M VHIRW4Lx9IUtgQrlyNjdIPdOue536cqOH4Sdmjdqy7m3yy55ayOsv7ztR7EuObzMAUptW1iFR6pFO YaHvhNw4eTEheJC7ieJssw2xIdLOAMyge2UcR5NTIoWUXez3CO1o7F/s9IR5KG8dd+mNkufROdKK8 1YtrJKDEjySQlpUEGrwKP+ODbi04ndvTK++BjyjzRv2o5NwjXdPjFhy4BcmXkQ/8UhpVdA+PCg8Os epY4Kdbw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1v5k8o-0000000HZ7n-1DAa; Mon, 06 Oct 2025 12:16:34 +0000 Received: from fra-out-013.esa.eu-central-1.outbound.mail-perimeter.amazon.com ([63.178.132.221]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uzYHU-00000002Y8z-1boU; Fri, 19 Sep 2025 10:23:58 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazoncorp2; t=1758277436; x=1789813436; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=M14+Hrw3+0xfvL7LtAKdftp5KA5xdtXGebEkX3FEMMU=; b=I7IK1GuIaLy5MfL08Rg4bsPusBnI7vCH5eff5CsKrPXxLWLVerKbjHT/ /SJYFxf01aaa4Wj1NxTdNHtQnc033S4krdMhmqhzCxwqu6yWl9xHvKH2x OMN/rzDUTqG/UiONJq9vC7msrQHjXNXGDwu0jQA9SfNcsQcv1WooEeyhe V5931TVzJAUziWWsMSak2h1OwPQYG4vorp5HsESevA1HMdjcqIj6h0sbw qM+7wT8NItEhgMsInt3DT6A+Y6zYbmATruHhzm+t3JGh9QA5DL8CKWoU5 ONNpXHLFfh4S+S8a4NTeVFU/jxcnhWTxKddYXKX7TBWYCiJ/6xUDh9iNP Q==; X-CSE-ConnectionGUID: tVddmQdzSSWtL5CWETEbBg== X-CSE-MsgGUID: BwlTxSfMRb+QOlcWG8kkaQ== X-IronPort-AV: E=Sophos;i="6.18,277,1751241600"; d="scan'208";a="2264307" Received: from ip-10-6-6-97.eu-central-1.compute.internal (HELO smtpout.naws.eu-central-1.prod.farcaster.email.amazon.dev) ([10.6.6.97]) by internal-fra-out-013.esa.eu-central-1.outbound.mail-perimeter.amazon.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Sep 2025 10:23:54 +0000 Received: from EX19MTAEUC001.ant.amazon.com [54.240.197.225:6079] by smtpin.naws.eu-central-1.prod.farcaster.email.amazon.dev [10.0.0.240:2525] with esmtp (Farcaster) id adafa649-7e2b-48cb-b9f9-f9d8c19f03d6; Fri, 19 Sep 2025 10:23:53 +0000 (UTC) X-Farcaster-Flow-ID: adafa649-7e2b-48cb-b9f9-f9d8c19f03d6 Received: from EX19D018EUA004.ant.amazon.com (10.252.50.85) by EX19MTAEUC001.ant.amazon.com (10.252.51.193) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.2562.20; Fri, 19 Sep 2025 10:23:50 +0000 Received: from dev-dsk-farbere-1a-46ecabed.eu-west-1.amazon.com (172.19.116.181) by EX19D018EUA004.ant.amazon.com (10.252.50.85) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.2562.20; Fri, 19 Sep 2025 10:23:22 +0000 From: Eliav Farber To: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , Christoph Hellwig , Linus Torvalds Subject: [PATCH 10/27 5.10.y] minmax: allow comparisons of 'int' against 'unsigned char/short' Date: Fri, 19 Sep 2025 10:17:10 +0000 Message-ID: <20250919101727.16152-11-farbere@amazon.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20250919101727.16152-1-farbere@amazon.com> References: <20250919101727.16152-1-farbere@amazon.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [172.19.116.181] X-ClientProxiedBy: EX19D032UWA003.ant.amazon.com (10.13.139.37) To EX19D018EUA004.ant.amazon.com (10.252.50.85) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250919_032356_716854_BF3B5D54 X-CRM114-Status: GOOD ( 10.83 ) X-Mailman-Approved-At: Mon, 06 Oct 2025 05:16:26 -0700 X-BeenThere: linux-um@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-um" Errors-To: linux-um-bounces+linux-um=archiver.kernel.org@lists.infradead.org From: David Laight [ Upstream commit 4ead534fba42fc4fd41163297528d2aa731cd121 ] Since 'unsigned char/short' get promoted to 'signed int' it is safe to compare them against an 'int' value. Link: https://lkml.kernel.org/r/8732ef5f809c47c28a7be47c938b28d4@AcuMS.aculab.com Signed-off-by: David Laight Cc: Andy Shevchenko Cc: Christoph Hellwig Cc: Jason A. Donenfeld Cc: Linus Torvalds Cc: Matthew Wilcox (Oracle) Signed-off-by: Andrew Morton Signed-off-by: Eliav Farber --- include/linux/minmax.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/include/linux/minmax.h b/include/linux/minmax.h index c0e738eacefa..842c1db62ffe 100644 --- a/include/linux/minmax.h +++ b/include/linux/minmax.h @@ -26,8 +26,9 @@ __builtin_choose_expr(__is_constexpr(is_signed_type(typeof(x))), \ is_signed_type(typeof(x)), 0) -#define __types_ok(x, y) \ - (__is_signed(x) == __is_signed(y)) +#define __types_ok(x, y) \ + (__is_signed(x) == __is_signed(y) || \ + __is_signed((x) + 0) == __is_signed((y) + 0)) #define __cmp_op_min < #define __cmp_op_max > -- 2.47.3