From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 869F631AF14 for ; Wed, 24 Jun 2026 08:41:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782290469; cv=none; b=K7YwwwoFlSsK3pdjVuuWoxTsqpKzxrsYOV4625U8q44UHyl51tqXUv7dizOmoTFNdPPTRl4n0iCsxC3aqonh+fT0HXK6+/mQXGBiiZ1hhT3EGRmNNevvgrlx28bvi48PS+1mV0wXhmsw34LbGyURGT1QVjlBNaoDBn0kb9d8jCc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782290469; c=relaxed/simple; bh=6p65R2lYYeL2n+Tkm4b5zqv2oXTByNJMobbwY4ikuSE=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=ECfZRLf9glrSFhkv7CpZR/4jzYUwNjGwNxpuoftMx0VaUqEr0Y43OB98fQ6MFGXPnalFwUDXzpdh7dXZr2//rLvR9iXWpAfJH/jEvh0OiXJgOHOyO5ZOyIRt887hG+GyGHIjtvwIAGZWzIAk2rvjVcxmHxuU84Ndc4jVn/iTmW4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=VXLRBKC2; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="VXLRBKC2" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B264D1F000E9; Wed, 24 Jun 2026 08:41:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1782290468; bh=VqJlPfxoxl5rtqNtkTr/FihC1DlX42JxgeiHnC0SsMs=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=VXLRBKC2Vsaaxls3IH9HCMF6Lj9DFy5C3QN4O1sqrQd8YMD/a1OtQmTq52iYNEsMW jamajo6Vt+ae/U5yQWRWU8B0HrVNPHUUMubSUmBE/eTMziXywwff72PP5pWh5pTCl3 ZdXrMxvHJ/2bFNsF02O2qelQ2UpXpf8VhUdCu82+PiYnRoyL+dHisz6ODd5asedHBN dodzMtM+NpywG8Ky9vpKUES08dXHbbY6MP5vFeET19p7ueriKbZ+rwYgqh0ET8yK6n 74X7RMcEm2k+UVr9Bh9LBliYkw40aHFAEP5KyJpVw/WLXmJ7yRdPhTV6xiAAzq8o9n GEpwL7llXDPyg== Message-ID: <9145eec2-9124-4c3b-911d-c005b29d2deb@kernel.org> Date: Wed, 24 Jun 2026 10:41:02 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] powerpc/uaccess: Check CONFIG_PPC_E500 To: Pengpeng Hou , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org References: <20260624081523.88025-1-pengpeng@iscas.ac.cn> Content-Language: fr-FR From: "Christophe Leroy (CS GROUP)" In-Reply-To: <20260624081523.88025-1-pengpeng@iscas.ac.cn> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Hi, Le 24/06/2026 à 10:15, Pengpeng Hou a écrit : > The powerpc CPU Kconfig defines `PPC_E500`. There is no generated > `CONFIG_E500` symbol for `IS_ENABLED()` to test here. > > `mask_user_address()` therefore checks an impossible symbol before > choosing the E500-specific masking helper. Use `CONFIG_PPC_E500`, which > matches the actual Kconfig provider for this CPU family. There is already a fix in the queue waiting to be applied: https://lore.kernel.org/all/20260615233729.29386-1-enelsonmoore@gmail.com/ > > Signed-off-by: Pengpeng Hou > --- > arch/powerpc/include/asm/uaccess.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h > --- a/arch/powerpc/include/asm/uaccess.h > +++ b/arch/powerpc/include/asm/uaccess.h > @@ -537,7 +537,7 @@ static __always_inline unsigned long mask_user_address(const void __user *ptr) > > if (IS_ENABLED(CONFIG_PPC64)) > return mask_user_address_simple(ptr); > - if (IS_ENABLED(CONFIG_E500)) > + if (IS_ENABLED(CONFIG_PPC_E500)) > return mask_user_address_isel(ptr); > if (TASK_SIZE <= UL(SZ_2G) && border >= UL(SZ_2G)) > return mask_user_address_simple(ptr); >