From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f44.google.com (mail-wm1-f44.google.com [209.85.128.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B6C8537417D for ; Fri, 27 Mar 2026 12:55:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.44 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774616132; cv=none; b=e7gUI+GV7xZGJLK0RiGOn3ij9GIlEgi3EiEFMl9WrBFAGprvhdVOIWgYI2bVtoLAHXKqCZI1s2L9M8aFvl2r4MPYmgd17oF3lqeapfs0pVLHfZCC3bOTkcet7J+x91ZpQXn+djqgBanKDQiM5Z76RCA2ZCqTP2twQaXgcxyT55Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774616132; c=relaxed/simple; bh=LWqbvh3FeikukKL/Ot4NgwDYa+s99h0ef6596oxgW00=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=u7vE/43aTSVvXk8PoXNLOEoVHFS9tRfVlJ0+/bYaD0MBIqiWxyU+ftv3FE2NQz/dBXUhAOI+NiOLXzKU3Q/cQkXk+quseNlHsl5n2RIwrNTua5ynLk9WUosRywuafwN5KlMUVBuLtPYCoF5bSZtiUh9soJ+jZkz3rzpGwZqBOw0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=YN8sghLm; arc=none smtp.client-ip=209.85.128.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="YN8sghLm" Received: by mail-wm1-f44.google.com with SMTP id 5b1f17b1804b1-48704db565eso29963665e9.1 for ; Fri, 27 Mar 2026 05:55:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1774616129; x=1775220929; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:from:to:cc:subject:date :message-id:reply-to; bh=MP30gO10RQY6yXiMpOxuMeuGTT1rodnXb+jcK+Xa1Wg=; b=YN8sghLmTaOw2FvVeIPViL24BP2LmqV69Iu1JTPmXnGAX2BRw+MMm3U6aRuqsUVZDy n2i2p+t+Q7pg6PcpV3XEYAsOkMsYzN4D4df/2IwdkaTowinFc9Xq2Dv6kX8bvtNdSDed Yq21nD16yE/VGIjU6xFN0FUsMmxmLeN5T5uOk2u+MO5DiOVZ3+U2xWyzV5oAw2jqCkTg Es4cId3ZX8EW6KunGxr5UaNph9u8WIayf6SgG0yB1RC/Ss7+/Sa8yx9hUdXJFYh/bW37 FpUyEHedOXP0u3PYRfLsydyeU4igik2La6KlI+QJQ/y+fsaaz87NmEma3EBjw3emtXKT rMHQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1774616129; x=1775220929; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=MP30gO10RQY6yXiMpOxuMeuGTT1rodnXb+jcK+Xa1Wg=; b=icNYVJeVlbIfekbKhKe1RLdBzvbs61rTu4tLN18TVZ5/TC+o6HR3f+EVMarOxhfKXq Q0aG7uqanA+5L1EuNtKEIlXqo+Us5rD+AoGhRkpsl6Rxazo18Z8XBsTl6jtD9S2QQynj i/zdNzUl15cCuPBtlaRqjgHS9uaa8zJgx1pxxn2CfCkJuGTsu7oUUAjT4GuAnwQH/TVM CCZmaS4IFqhS3KxsQS2MjO3XHm87rjksJADb/WRVmTXFPfTsvb4rlZfTa/7Ki14Gyri6 0s/nbwCJykBA/JL+x05kFI+ZKjKsDloPgTYDKKdNwjXXa5T8ialBUFYb6K1XULYOY0Yc E8WA== X-Forwarded-Encrypted: i=1; AJvYcCXsKOtPM6jtkRnjLJtJlB1myV/y6+iW3EXmnrH/3Wf9fA19ewgn6Bu+zVbisyQqd4+6DyySQri0BGtqDVE=@vger.kernel.org X-Gm-Message-State: AOJu0Yx5qZTzkUh3+CIFVuh4d9IyphUk9oaQLoBdCHYfh/Y9H84/T0BZ tER684Uzbg8zF/Qvks8myVh9HqNUaJ1lRKlLyDffRsxTM6+QFepT5qyz X-Gm-Gg: ATEYQzz/YZI5hcsgGQTgjg50vOhKuDV4dwDeKCTakKMUYdidEX3ShE8OuNsyud6wU57 6SSV38QRjonmm0d2RGmuxTrEV+t3whb0xCCySoM+JWWXn8HUQtlF3fFXQ3uze5GuBIWkDgMnhjT qj0Gfo76lbb+0nhKTvqRqx5C32HMA9pelko1FCVnPsQSa+a8DQgWv9asCmxWpK5ylEIC/z9CQa5 mWMcsbXsW0omZ9e9gsBPzp/RMiIsKz/ce4q8ViVWj4BtkN3art2qx1RvoXm3InfUi2kWQdLZVg9 uFrBEuieOsUT47lKAXi36EOF/UzvqXnwwJpDRF+gTGqcg0MWDjCrdyi5uUd9NZBEByrNXNmr5C1 0UVFZpCejMrEaki4JcIw0BcjYgtq9EZZ6dHe2lpu5zT70mPXaOwzG70GhDyk12nKLi4VVlwnZX/ a/XyftUISC203lCz0I3v/rEW46p2YipEeAgRq6aNQPeWVtIA0vqJ3jxtm9Kik8vR6e X-Received: by 2002:a05:600c:c168:b0:485:35a4:939f with SMTP id 5b1f17b1804b1-48727eddeacmr41627195e9.28.1774616128950; Fri, 27 Mar 2026 05:55:28 -0700 (PDT) Received: from pumpkin (82-69-66-36.dsl.in-addr.zen.co.uk. [82.69.66.36]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48722be608bsm118640275e9.0.2026.03.27.05.55.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 27 Mar 2026 05:55:28 -0700 (PDT) Date: Fri, 27 Mar 2026 12:55:27 +0000 From: David Laight To: Petr Mladek Cc: Pablo Neira Ayuso , Florian Westphal , Phil Sutter , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , netfilter-devel@vger.kernel.org, coreteam@netfilter.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Masami Hiramatsu , Rasmus Villemoes , Andy Shevchenko , Steven Rostedt , Sergey Senozhatsky , Andrew Morton Subject: Re: [PATCH next] netfilter: nf_conntrack_h323: Correct indentation when H323_TRACE defined Message-ID: <20260327125527.13aaf590@pumpkin> In-Reply-To: References: <20260326201819.3900-1-david.laight.linux@gmail.com> X-Mailer: Claws Mail 4.1.1 (GTK 3.24.38; arm-unknown-linux-gnueabihf) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Fri, 27 Mar 2026 10:47:41 +0100 Petr Mladek wrote: > On Thu 2026-03-26 20:18:19, david.laight.linux@gmail.com wrote: > > From: David Laight > > > > The trace lines are indented using PRINT("%*.s", xx, " "). > > Userspace will treat this as "%*.0s" and will output no characters > > when 'xx' is zero, the kernel treats it as "%*s" and will output > > a single ' ' - which is probably what is intended. > > > > Change all the formats to "%*s" removing the default precision. > > This gives a single space indent when level is zero. > > > > Signed-off-by: David Laight > > --- > > net/netfilter/nf_conntrack_h323_asn1.c | 38 +++++++++++++------------- > > 1 file changed, 19 insertions(+), 19 deletions(-) > > > > diff --git a/net/netfilter/nf_conntrack_h323_asn1.c b/net/netfilter/nf_conntrack_h323_asn1.c > > index 7b1497ed97d2..287402428975 100644 > > --- a/net/netfilter/nf_conntrack_h323_asn1.c > > +++ b/net/netfilter/nf_conntrack_h323_asn1.c > > @@ -276,7 +276,7 @@ static unsigned int get_uint(struct bitstr *bs, int b) > > static int decode_nul(struct bitstr *bs, const struct field_t *f, > > char *base, int level) > > { > > - PRINT("%*.s%s\n", level * TAB_SIZE, " ", f->name); > > + PRINT("%*s%s\n", level * TAB_SIZE, " ", f->name); > > > > return H323_ERROR_NONE; > > } > > The change is important for making the kernel %*.s handling POSIX > compliant. The dot '.' without any following number is handled > a zero precision by POSIX. It would print no space "" when > also the field width was zero, aka when level == 0. > > It has no efect if the field width (@level) is always > 0 because > vsprintf() would add the required emptry spaces ' ' anyway. That looks like C&P AI output... > > Reviewed-by: Petr Mladek > > Best Regards, > Petr > >