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 06C78CA0EE4 for ; Sat, 23 Aug 2025 10:31:54 +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:In-Reply-To: Content-Transfer-Encoding:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=C+R9+RSshuFFxb4UCpCF69wEYw6E6rRhR98wlUBiP08=; b=HlSXmFa/ELulDhv4PU8kfX5ELB hc9qeCNQwXWLmnmEsWZF9nY0a7DcMQtlJPvuFtxocTmiaGfQJEmQ3FLF5yqfZp+K3GrNsbi7ScO+J ZLgFluk+8xZF3HH1L5a/6bGD9mvX47JJpMx3rM9AH10SQW3NAqVml01DS3iFUK4usyvmOZGOoK69G TxSHEAFbpInifZsROSUg3vGx9nOjerEFSRwvzTQODrJO1SctY6kRP6c8UotyAaqX2Asd2SX88KmGg 8mdITeZlHEt3W5pPfPZc9zPEKyBf0bkmMqb5m2EfNE+2ckqu4yf3c8GzLu9jt6hCgQVq8piLU0fgk rWBIyYlw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uplXI-00000004eEc-1pwd; Sat, 23 Aug 2025 10:31:48 +0000 Received: from ded1.1wt.eu ([163.172.96.212] helo=1wt.eu) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uplUd-00000004e6g-3jEk for linux-arm-kernel@lists.infradead.org; Sat, 23 Aug 2025 10:29:06 +0000 Received: (from willy@localhost) by pcw.home.local (8.15.2/8.15.2/Submit) id 57NAStdm021216; Sat, 23 Aug 2025 12:28:55 +0200 Date: Sat, 23 Aug 2025 12:28:55 +0200 From: Willy Tarreau To: Thomas =?iso-8859-1?Q?Wei=DFschuh?= Cc: Catalin Marinas , Will Deacon , Shuah Khan , Mark Brown , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kselftest@vger.kernel.org Subject: Re: [PATCH 0/7] tools/nolibc: reduce __nolibc_enosys() fallbacks Message-ID: <20250823102855.GA21208@1wt.eu> References: <20250821-nolibc-enosys-v1-0-4b63f2caaa89@weissschuh.net> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20250821-nolibc-enosys-v1-0-4b63f2caaa89@weissschuh.net> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250823_032904_915492_51D94EF2 X-CRM114-Status: GOOD ( 13.30 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Thomas, On Thu, Aug 21, 2025 at 05:40:31PM +0200, Thomas Weißschuh wrote: > The __nolibc_enosys() fallback is used when the UAPI headers do not > provide a certain syscall number or any possible fallback syscall. > This is either because the syscall definition is fairly new and nolibc > tries to be compatible with old UAPI headers or an architecture does not > support a syscall at all. > Many of these __nolibc_enosys() fallbacks have become unnecessary. > Either because the "new" syscalls or not so new anymore or real > fallbacks have been implemented in the meantime. > > Unnecessary usages of __nolibc_enosys() as it is not obvious anymore if > a given function is really implemented on all architectures. > > Signed-off-by: Thomas Weißschuh OK I reviewed it all and it's fine for me. Please note in patch 1's commit message, s/where added/were added/ :-) For the whole series: Acked-by: Willy Tarreau Thanks, Willy