From nobody Thu Oct 2 01:59:12 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5C7182367C5 for ; Thu, 25 Sep 2025 13:20:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758806444; cv=none; b=cSMm8aLvyuhgT9t4Wdqj3aPp/SA3b/ZNq7Mt29KGojRpjm+azBheHR6Rh836t3mAx3cW93Y8PMg+anp2QssracETm2uWvTFdRleqGrYy40dzu9v5YWDIT7+Kkr5iPV25ekdljki8IoL6NPNk8eFpYCR2xXrKA6iaat5BfVixpZU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758806444; c=relaxed/simple; bh=x8LCJhegC97O6xERC5LDearaauqtJIxIIcuU8JYgDQ8=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=aVAjgKsP13Q9Rch2zPXbbfE9YrrYsTq83WFk+j8DtS0zZiQqtxvBsuJMzWgBypxaT6OtOcotehC3WaUsfk7Lvba6C4GcdnT44x7z+c/0dRqQUStXqWcgt+2MMynwXX3O0SlZXi/Kn2dcWXbIxRhgxr4Id+YDa7ZpOvM7r5O2NPs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=bxeNLm0D; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="bxeNLm0D" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BA7BFC4CEF0; Thu, 25 Sep 2025 13:20:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1758806444; bh=x8LCJhegC97O6xERC5LDearaauqtJIxIIcuU8JYgDQ8=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=bxeNLm0DZWNdN7BMMB3CuQoBsPHFjJYTQ53k4EOVbDH5FO/5+WOseIpE3pWzT13LJ VTJ5tt7YEN6pasYHgBhtU3mg6z0dRUv4KBPhaB8v58Jng2au8Jr+xOhyOx5nRSurNV r8ooLZd5lc27XKJ2bdcLJudFZdipZgBTb0nlwqpYwNrzPObtolPLiJPRRSEIMcSzWX eiRd6p6rM3tNuEpUpcD0NbwgRtBqFuff215OHpEtBgK9D5vAtDw/rWK8xehkEjZm9P iqs1OOawbFZveOXGIFboTNMolqpy3CQLmH6Td8EWLz/BrxRFZUe8/T5O7rY/DWdBHU zbNu4IUSNsIYw== Date: Thu, 25 Sep 2025 15:20:37 +0200 From: Alejandro Colomar To: linux-kernel@vger.kernel.org Cc: Alejandro Colomar , Marco Elver , Kees Cook , Christopher Bazley , Alexander Potapenko , Dmitry Vyukov , Jann Horn , Andrew Morton , Linus Torvalds , Rasmus Villemoes , Michal Hocko , Al Viro Subject: [PATCH v1 1/3] array_size.h: Add ENDOF() Message-ID: <0b3d2fde03a0b11643d5a9bb56d7a903c58320cf.1758806023.git.alx@kernel.org> X-Mailer: git-send-email 2.51.0 References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" This macro is useful to calculate the second argument to sprintf_trunc_end(), avoiding off-by-one bugs. Cc: Kees Cook Cc: Christopher Bazley Cc: Rasmus Villemoes Cc: Marco Elver Cc: Michal Hocko Cc: Linus Torvalds Cc: Al Viro Signed-off-by: Alejandro Colomar Message-ID: <37b1088dbd01a21d2f9d460aa510726119b3bcb0.1752193588.git.alx@ke= rnel.org> --- include/linux/array_size.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/linux/array_size.h b/include/linux/array_size.h index 06d7d83196ca..781bdb70d939 100644 --- a/include/linux/array_size.h +++ b/include/linux/array_size.h @@ -10,4 +10,10 @@ */ #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(= arr)) =20 +/** + * ENDOF - get a pointer to one past the last element in array @a + * @a: array + */ +#define ENDOF(a) (a + ARRAY_SIZE(a)) + #endif /* _LINUX_ARRAY_SIZE_H */ --=20 2.51.0