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smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=oVPiojde; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8A30960820DD; Mon, 19 Oct 2026 15:06:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=oVPiojde Received: by smtp.kernel.org (Postfix) with ESMTPSA id 648721F000C4; Mon, 19 Oct 2026 15:06:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792422385; bh=YO8KqmgxaCD3TmIbX4cYdGIuCEfbIhOaI+JczxaaXSo=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=oVPiojdeHtcoC7V623YdPgcc12tJyiBtIi3r/06tYcoItdwfVrZ/7HEYZPNq5HMbc Y01CnzRrIMMXaTUgGQGlfBTGFZL+m9ntyWDf3wKSo9lM/ykCKtE9vXVo6u0L0B0EJf XhuzySPzglxiLDCIxSkmzgyHgL7CcoV4c/ODvNRykdtE05oXVV6R3MYxU3WGAEH89R XFXMS0Q1kyfPShub4mPlEVmMAu0W+NNngrvwAX35VvNpnXzJWItKxW6eXPvgGWvhfU F4GHqQPjbEdVfCEjxrSUv2plbCkEeUpbuxKO6CrKF5o6loVt8ELf1UQKmbmqJju8/k UQai2DEDoxm0g== Message-ID: Date: Mon, 19 Oct 2026 17:06:21 +0200 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] [v3] serial: 8250: remove obsolete and broken PORT_RSA support To: Arnd Bergmann , Greg Kroah-Hartman Cc: Arnd Bergmann , Andy Shevchenko , Hugo Villeneuve , =?UTF-8?Q?Uwe_Kleine-K=C3=B6nig_=28The_Capable_Hub=29?= , linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org References: <20261019090017.430425-1-arnd@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 19. 10. 26, 10:56, Arnd Bergmann wrote: > From: Arnd Bergmann > > For all I can tell, the RSA support in the 8250 driver is not functional > and has not been for a long time. > > The RSA-DV II/S ISA card[1] was sold by IODATA in the 1990s as a faster > alternative to regular ISA serial ports, and it was discontinued in > 2002. Linux support was added by Kiyokazu SUTO in 2000. > > The driver defines an I/O port base address of -8 (negative eight), > which should always get refused by request_region on all architectures > for being outside of the valid resource range. > > Further, it seems that a patch to setserial would be required in order > to set PORT_RSA when not using autoconfiguration. > > This patch removes all code related to the RSA support, with the exception > of the user-visible PORT_RSA definition. > > Link: http://translate.google.com/translate?hl=en&sl=ja&u=http://www.iodata.jp/products/network/rsadv2s.htm > Link: https://lore.kernel.org/all/1309211120-2803-6-git-send-email-arnd@arndb.de/ > Signed-off-by: Arnd Bergmann Acked-by: Jiri Slaby -- js suse labs