linux-kernel - Re: [PATCH RESEND] accel/habanalabs: Replace kmalloc_array + copy_from_user with memdup_array

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Message-ID: <4a9f0ccf-5852-43fc-8e19-45d74824253a@intel.com>
Date: Sat, 29 Nov 2025 21:10:22 +0200
From: "Sinyuk, Konstantin" <konstantin.sinyuk@...el.com>
To: Thorsten Blum <thorsten.blum@...ux.dev>, Koby Elbaz
	<koby.elbaz@...el.com>, Oded Gabbay <ogabbay@...nel.org>, Andrew Morton
	<akpm@...ux-foundation.org>, Easwar Hariharan
	<easwar.hariharan@...ux.microsoft.com>
CC: Karol Wachowski <karol.wachowski@...ux.intel.com>,
	<dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH RESEND] accel/habanalabs: Replace kmalloc_array +
 copy_from_user with memdup_array_user

On 11/3/2025 11:15 AM, Thorsten Blum wrote:
> Replace kmalloc_array() followed by copy_from_user() with
> memdup_array_user() to improve and simplify cs_ioctl_engine_cores(),
> cs_ioctl_engines(), and hl_multi_cs_wait_ioctl().
> 
> Remove the unused variable 'size_to_copy' from hl_multi_cs_wait_ioctl().
> 
> No functional changes intended.
> 
> Reviewed-by: Karol Wachowski <karol.wachowski@...ux.intel.com>
> Reviewed-by: Konstantin Sinyuk <konstantin.sinyuk@...el.com>
> Signed-off-by: Thorsten Blum <thorsten.blum@...ux.dev>

Applied to accel/habanalabs-next, thanks.