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 8AFCE19CCF7; Fri, 29 May 2026 07:47:36 +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=1780040857; cv=none; b=UNaVakvFoWO2AHQ8hu+p0ywyHqU4CkACYc0/vCKM5WRkX9TtY5HHaEoduIQjuXJCySyZFe4Sy1TZJct11VAy4+Eu4zcTsxizBuwCGN4YTisHuyfojJnR3jdAM01sXy76USfsih/n7Mwm7pGbfmPL41HAgIRLb3Iq6wYx4ywJBcc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780040857; c=relaxed/simple; bh=4CRyOVmfLBpVTmSo20Xl3YzNoWJWwAb15gqK+NmKXDE=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=VHQWFZkXd8vVgI4JFBzk+dVrsiHdDW/J+PsXDuGatmUO1DMpMh4dDq7K/djaDreqk+UZ+C91sqa16E03Emnu8a+3FplOBo+wsBxcbLjICT+OJr/GNZdGGk9XsX/UisEfXFGxEmD4PLWRUgypLA4AzFm/FWTzuGbFxsaghWfHP08= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FNzeZCYW; 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="FNzeZCYW" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1AA331F00893; Fri, 29 May 2026 07:47:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1780040856; bh=XmNFt19sfIlkcuJPBReQqrZSY8aoNNa0IyVf/lXiX2M=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=FNzeZCYWj5hs2WFOzdDJLLUOzi8MJFvLzU1iRNVWJDzVl0O/EdU8glXvjInyW6nDy Y69qBMICwsSNeeauTzfRfCAu4jp+o/aWJ3cvvJZpjgvpGWFkmQsRwGAT1U/Ado64oy fcWhON2gZL6pSv2JVydhNMioPHvIKLKMn7VYLhhW4U5BZ7sI8LFc/XhuFQFMnSAL3H C/SiPJGOmXbm1HfGVaO8XCx91haxLkGUtUrsqdfY0ZE2+B873lrUFzI5o9+lNy4sJ0 1Bhl8p82/r/NA/kDpQQKE1bRPkD2c0tOTGLzLd6Xm+HagF8qYRNYgF2KXRbV+1HYE7 H8jGiJE/1PvjA== Message-ID: <18bb4a45-c26b-4a89-b598-a844d3aadafa@kernel.org> Date: Fri, 29 May 2026 09:47:33 +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 3/4] tty: serial: men_z135_uart: replace __get_free_page() with kmalloc() To: "Mike Rapoport (Microsoft)" , Greg Kroah-Hartman Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-serial@vger.kernel.org References: <20260528-b4-tty-v1-0-9da9f7aec5f2@kernel.org> <20260528-b4-tty-v1-3-9da9f7aec5f2@kernel.org> Content-Language: en-US From: Jiri Slaby Autocrypt: addr=jirislaby@kernel.org; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 28. 05. 26, 12:24, Mike Rapoport (Microsoft) wrote: > men_z135_probe() allocates a receive staging buffer filled by the > CPU via memcpy_fromio() from the device MMIO region. > > This buffer can be allocated with kmalloc() as there's nothing special > about it to go directly to the page allocator. > > kmalloc() provides a better API that does not require ugly casts and > kfree() does not need to know the size of the freed object. > > Replace use of __get_free_page() with kmalloc() and free_page() with > kfree(). > > Link: https://lore.kernel.org/all/635405e4-9423-4a25-a6e7-e03c8ea0bcbe@redhat.com > Signed-off-by: Mike Rapoport (Microsoft) > --- > drivers/tty/serial/men_z135_uart.c | 7 ++++--- > 1 file changed, 4 insertions(+), 3 deletions(-) > > diff --git a/drivers/tty/serial/men_z135_uart.c b/drivers/tty/serial/men_z135_uart.c > index 6fad57fee912..9c32b01edc9e 100644 > --- a/drivers/tty/serial/men_z135_uart.c > +++ b/drivers/tty/serial/men_z135_uart.c > @@ -17,6 +17,7 @@ > #include > #include > > +#include > #define MEN_Z135_MAX_PORTS 12 This one is misplaced. thanks, -- js suse labs