From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-lf1-f52.google.com (mail-lf1-f52.google.com [209.85.167.52]) (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 88D8C18E0E for ; Wed, 29 Nov 2023 10:13:19 +0000 (UTC) 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="AeSUa6gM" Received: by mail-lf1-f52.google.com with SMTP id 2adb3069b0e04-50bc8a9503fso74772e87.3 for ; Wed, 29 Nov 2023 02:13:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1701252797; x=1701857597; darn=lists.linux.dev; h=mime-version:references:in-reply-to:message-id:subject:cc:to:from :date:from:to:cc:subject:date:message-id:reply-to; bh=gCZTkTf5gNqH/rsoLk7etD6DwWJwR710k5LJwshNSuI=; b=AeSUa6gMhSx/LUVYoPu287qR5+ZjqokTXELpxm6iBW9vNHD3JZv6bM7y7YAQXC96cs 4KjLjEbS/lk/etIGSb0ztNqIKb2Yghn4GBQZOZpXnJ5bZ34mLIgp0zJFEDnouRw4IOVc +wXSjmCeIkH5SkTftfH7JlW66gOeg7daCLW5rRM5ZAZ0gfTntTSWg2ptdZBrFYFdq3pX 7DSaa+847GwcmgHvbEMRQxiVjQqNbAQ5UAQYF0grSA7LNP2S8OM/IinAQKQSAh+Se5za YHW36eWuSFjKZ+XQTzmtXLt5UEpCl/UqGhrUhm0UWA1UgfMfFHVbUYVFtB3PcbZN6zEO mGEA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701252797; x=1701857597; h=mime-version:references:in-reply-to:message-id:subject:cc:to:from :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=gCZTkTf5gNqH/rsoLk7etD6DwWJwR710k5LJwshNSuI=; b=MS6jjsgCm1NqDkv8P6zga1IQGYZcSe7N2W2iyKk15u8VRVBdM1qds67BE/4d7Z79Lr idKI5sbJCEjzwLDjCw0Dc/XpnYs5O6TRrvgz+1TL69qiyOZl8xw1f/X9KTej2vodzHwe L1FML8JvGm77xZebeOPZuDx3wEapdXhLuHGG61mMZNz2ahWTLWXuNqWXMLM/iwkcTtTv dH/nHQ2psQ3M8ZBwB9Ws93TYeP03f/REoDsgkSW1acxkY/Xww+xt43uL9mwHkVCU5XWi h3SSxK+zRm1OS4yAjZORn02eEo/dwLbUDFYL8plx8z8lDe4NUrKnMTUMJ71kysenwJA3 pVcw== X-Gm-Message-State: AOJu0YyTjT0icnAZ4DZ8B0xjuG5Zb7MA3S9jXedBWTgIjJosFhAbsyBT q1HLLxrhprDJlFBzEBbb5kY= X-Google-Smtp-Source: AGHT+IEqoByK4nUUfepBkFUQYGj/+qIG7mkFMGeDo/wE/qhqodU6sLdPk1cmUua5FNVdwpoUj02mkQ== X-Received: by 2002:a19:f60e:0:b0:507:cfbc:bf8d with SMTP id x14-20020a19f60e000000b00507cfbcbf8dmr11730596lfe.16.1701252797196; Wed, 29 Nov 2023 02:13:17 -0800 (PST) Received: from eldfell ([194.136.85.206]) by smtp.gmail.com with ESMTPSA id q9-20020a0565123a8900b0050abbda2c52sm2140292lfu.157.2023.11.29.02.13.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Nov 2023 02:13:16 -0800 (PST) Date: Wed, 29 Nov 2023 12:12:59 +0200 From: Pekka Paalanen To: Ville =?UTF-8?B?U3lyasOkbMOk?= Cc: Maxime Ripard , Jani Nikula , Thomas Zimmermann , Emma Anholt , Jonathan Corbet , linux-kernel@vger.kernel.org, Samuel Holland , Sandy Huang , Jernej Skrabec , linux-doc@vger.kernel.org, Hans Verkuil , linux-rockchip@lists.infradead.org, Chen-Yu Tsai , dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org, linux-sunxi@lists.linux.dev, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v4 05/45] drm/connector: Check drm_connector_init pointers arguments Message-ID: <20231129121259.47746996@eldfell> In-Reply-To: References: <20231128-kms-hdmi-connector-state-v4-0-c7602158306e@kernel.org> <20231128-kms-hdmi-connector-state-v4-5-c7602158306e@kernel.org> <87h6l66nth.fsf@intel.com> X-Mailer: Claws Mail 4.1.1 (GTK 3.24.38; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/qS7Sjt2IF0HAAZwDWVWm5Tz"; protocol="application/pgp-signature"; micalg=pgp-sha256 --Sig_/qS7Sjt2IF0HAAZwDWVWm5Tz Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On Tue, 28 Nov 2023 15:49:08 +0200 Ville Syrj=C3=A4l=C3=A4 wrote: > Should we perhaps start to use the (arguably hideous) > - void f(struct foo *bar) > + void f(struct foo bar[static 1]) > syntax to tell the compiler we don't accept NULL pointers? >=20 > Hmm. Apparently that has the same problem as using any > other kind of array syntax in the prototype. That is, > the compiler demands to know the definition of 'struct foo' > even though we're passing in effectively a pointer. Sigh. __attribute__((nonnull)) ? 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