From patchwork Mon Jul 10 09:35:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Conor Dooley X-Patchwork-Id: 701328 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1B3FDEB64D9 for ; Mon, 10 Jul 2023 09:39:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232777AbjGJJjy (ORCPT ); Mon, 10 Jul 2023 05:39:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54390 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232836AbjGJJjL (ORCPT ); Mon, 10 Jul 2023 05:39:11 -0400 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.153.233]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BC299183; Mon, 10 Jul 2023 02:36:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1688981815; x=1720517815; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=1i34KSawlUL8WNjNkmTiVglWiYjIqUpNKEWr7RWMan4=; b=dkU568SU+UcSyHrU6giMnLlJ1v4LoewMAX6SrSQOP45Z3WqxQP/tHPZs v9W6ZuI6dkVpeP9T/2osLaawFKsVqAdlv6hG2Hsqa8DSt62A+5UB6L5Ee sUZjNOvp2DS2wh4tGl8HZdQdiz7Rc2D4UIaQyV7Mfd2TcN9ZXZX3xAHt3 26IaZbkz3v9Hb/JaFFtChMyDTf/GLG8Gk4taMsi0Ll5BuY2WxKgQ/qjFm KA7MZxIOoJx+k9Hsp/rmlFBP8h7VIYleoO63BPYUtQisjzwuQlaN1ayRG i/hI0Tu9OHijMj3AGEoGqNLi4s4go//SUH10a0G2XdRer8ZKKVVefOBxX w==; X-IronPort-AV: E=Sophos;i="6.01,194,1684825200"; d="scan'208";a="234573296" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa1.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 10 Jul 2023 02:36:40 -0700 Received: from chn-vm-ex01.mchp-main.com (10.10.85.143) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.21; Mon, 10 Jul 2023 02:36:36 -0700 Received: from wendy.microchip.com (10.10.115.15) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server id 15.1.2507.21 via Frontend Transport; Mon, 10 Jul 2023 02:36:34 -0700 From: Conor Dooley To: CC: , , Rob Herring , Krzysztof Kozlowski , Paul Walmsley , Albert Ou , "Jonathan Corbet" , Andrew Jones , "Heiko Stuebner" , Evan Green , Sunil V L , , , , Subject: [PATCH v4 03/11] RISC-V: drop a needless check in print_isa_ext() Date: Mon, 10 Jul 2023 10:35:38 +0100 Message-ID: <20230710-map-unlocking-9f674ee171bb@wendy> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230710-equipment-stained-dd042d66ba5d@wendy> References: <20230710-equipment-stained-dd042d66ba5d@wendy> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1275; i=conor.dooley@microchip.com; h=from:subject:message-id; bh=1i34KSawlUL8WNjNkmTiVglWiYjIqUpNKEWr7RWMan4=; b=owGbwMvMwCFWscWwfUFT0iXG02pJDCmrL1xTEVf/3XjKu/FK/trOlIJHnLEzzrSGtosIRW32sVOo THPpKGVhEONgkBVTZEm83dcitf6Pyw7nnrcwc1iZQIYwcHEKwEQKHBj++wUedIrm8Vv68c578dmTuH bbNJuHllrJPva9c+2/8f2HyxgZzp2WkLmxOl33VdKJsomyh4p4C2M/Lreb6H7JbJfBO6WTnAA= X-Developer-Key: i=conor.dooley@microchip.com; a=openpgp; fpr=F9ECA03CF54F12CD01F1655722E2C55B37CF380C Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org isa_ext_arr cannot be empty, as some of the extensions within it are always built into the kernel. When this code was first added, back in commit a9b202606c69 ("RISC-V: Improve /proc/cpuinfo output for ISA extensions"), the array was empty and needed a dummy item & thus there could be no extensions present. When the first multi-letter ones did get added, it was Sscofpmf - which didn't have a Kconfig symbol to disable it. Remove this check, as it has been redundant since Sscofpmf was added. Reviewed-by: Andrew Jones Signed-off-by: Conor Dooley --- Changes in v2: - Reword commit message to explain why this can be dropped --- arch/riscv/kernel/cpu.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/arch/riscv/kernel/cpu.c b/arch/riscv/kernel/cpu.c index f808b67f5a27..e721f15fdf17 100644 --- a/arch/riscv/kernel/cpu.c +++ b/arch/riscv/kernel/cpu.c @@ -237,10 +237,6 @@ static void print_isa_ext(struct seq_file *f) arr_sz = ARRAY_SIZE(isa_ext_arr) - 1; - /* No extension support available */ - if (arr_sz <= 0) - return; - for (i = 0; i <= arr_sz; i++) { edata = &isa_ext_arr[i]; if (!__riscv_isa_extension_available(NULL, edata->isa_ext_id))