From patchwork Mon Nov 15 15:20:28 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Palethorpe X-Patchwork-Id: 1555350 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=suse.com header.i=@suse.com header.a=rsa-sha256 header.s=susede1 header.b=YBYcxYSu; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.linux.it (client-ip=213.254.12.146; helo=picard.linux.it; envelope-from=ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it; receiver=) Received: from picard.linux.it (picard.linux.it [213.254.12.146]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4HtCZR1hdlz9s5P for ; Tue, 16 Nov 2021 02:21:03 +1100 (AEDT) Received: from picard.linux.it (localhost [IPv6:::1]) by picard.linux.it (Postfix) with ESMTP id 8A0CC3C8631 for ; Mon, 15 Nov 2021 16:21:00 +0100 (CET) X-Original-To: ltp@lists.linux.it Delivered-To: ltp@picard.linux.it Received: from in-2.smtp.seeweb.it (in-2.smtp.seeweb.it [217.194.8.2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by picard.linux.it (Postfix) with ESMTPS id BE48D3C0E98 for ; Mon, 15 Nov 2021 16:20:58 +0100 (CET) Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by in-2.smtp.seeweb.it (Postfix) with ESMTPS id 483E7601C55 for ; Mon, 15 Nov 2021 16:20:58 +0100 (CET) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 98AC921940; Mon, 15 Nov 2021 15:20:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1636989657; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=Zu/d/5gXbzwcgsvecdgAxwvlkcuEK3GHfvbT+sJl9iw=; b=YBYcxYSuZt80lSyIpNSlrLL+XIS9YxGyqPDClVjuU7UbS9yTgnM7nF5SK+GlrkRpg7L/QU xw/BtiIe8K1gI/3SYI+i6xdxueCOtQJExQfPJfQi9cJz6Kt6zBgn3JPtLGPvTM8yYQkq8h TzpikXbXJxn7Ez062RvxECxABukt3kg= Received: from g78.suse.de (unknown [10.163.24.38]) by relay2.suse.de (Postfix) with ESMTP id 60D6DA3B81; Mon, 15 Nov 2021 15:20:57 +0000 (UTC) To: ltp@lists.linux.it Date: Mon, 15 Nov 2021 15:20:28 +0000 Message-Id: <20211115152029.22552-1-rpalethorpe@suse.com> X-Mailer: git-send-email 2.33.1 MIME-Version: 1.0 X-Virus-Scanned: clamav-milter 0.102.4 at in-2.smtp.seeweb.it X-Virus-Status: Clean X-Spam-Status: No, score=0.1 required=7.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE,SPF_PASS autolearn=disabled version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on in-2.smtp.seeweb.it Subject: [LTP] [PATCH 1/2] lib: Cache kernel_bits value X-BeenThere: ltp@lists.linux.it X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux Test Project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Richard Palethorpe via ltp From: Richard Palethorpe Reply-To: Richard Palethorpe Cc: Richard Palethorpe Errors-To: ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it Sender: "ltp" This is primarily to avoid printing the uname info two or more times. Which is increasingly likely with using tst_kernel_bits in other library functions. Also with features like test variants where setup may be run multiple times. Signed-off-by: Richard Palethorpe Reviewed-by: Cyril Hrubis --- lib/tst_kernel.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/lib/tst_kernel.c b/lib/tst_kernel.c index c908bb04c..6db85bff0 100644 --- a/lib/tst_kernel.c +++ b/lib/tst_kernel.c @@ -37,7 +37,12 @@ static int get_kernel_bits_from_uname(struct utsname *buf) int tst_kernel_bits(void) { struct utsname buf; - int kernel_bits = get_kernel_bits_from_uname(&buf); + static int kernel_bits; + + if (kernel_bits) + return kernel_bits; + + kernel_bits = get_kernel_bits_from_uname(&buf); if (kernel_bits == -1) return -1;