From: Vinod Koul <vkoul@kernel.org>
To: Arnd Bergmann <arnd@kernel.org>
Cc: "Jaroslav Kysela" <perex@perex.cz>,
"Takashi Iwai" <tiwai@suse.com>,
"Amadeusz Sławiński" <amadeuszx.slawinski@linux.intel.com>,
"Arnd Bergmann" <arnd@arndb.de>,
"Yu Jiaoliang" <yujiaoliang@vivo.com>,
"Peter Ujfalusi" <peter.ujfalusi@linux.intel.com>,
linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] ALSA: compress_offload: avoid 64-bit get_user()
Date: Mon, 16 Dec 2024 21:58:41 +0530 [thread overview]
Message-ID: <Z2BVOUAPIr0+q0Fu@vaman> (raw)
In-Reply-To: <20241216093410.377112-2-arnd@kernel.org>
On 16-12-24, 10:33, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@arndb.de>
>
> On some architectures, get_user() cannot read a 64-bit user variable:
>
> arm-linux-gnueabi-ld: sound/core/compress_offload.o: in function `snd_compr_ioctl':
> compress_offload.c:(.text.snd_compr_ioctl+0x538): undefined reference to `__get_user_bad'
>
> Use an equivalent copy_from_user() instead.
Acked-by: Vinod Koul <vkoul@kernel.org>
--
~Vinod
next prev parent reply other threads:[~2024-12-16 16:28 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-16 9:33 [PATCH 1/2] ALSA: compress_offload: import DMA_BUF namespace Arnd Bergmann
2024-12-16 9:33 ` [PATCH 2/2] ALSA: compress_offload: avoid 64-bit get_user() Arnd Bergmann
2024-12-16 10:16 ` Shengjiu Wang
2024-12-16 16:28 ` Vinod Koul [this message]
2024-12-16 10:15 ` [PATCH 1/2] ALSA: compress_offload: import DMA_BUF namespace Shengjiu Wang
2024-12-16 16:28 ` Vinod Koul
2024-12-20 8:50 ` Takashi Iwai
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