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Sat, 1 Aug 2026 05:23:53 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ThreadId: AF2q3JJUJyJZ Date: Sat, 01 Aug 2026 11:23:32 +0200 From: "Arnd Bergmann" To: "Mingyu Wang" <25181214217@stu.xidian.edu.cn>, "Greg Kroah-Hartman" Cc: "Kees Cook" , linux-kernel@vger.kernel.org, stable@vger.kernel.org Message-Id: In-Reply-To: <20260801070756.161698-1-25181214217@stu.xidian.edu.cn> References: <2026080153-unthread-quake-ce1f@gregkh> <20260801070756.161698-1-25181214217@stu.xidian.edu.cn> Subject: Re: [PATCH] misc: ibmasm: Remove obsolete IBM Remote Supervisor Adapter driver Content-Type: text/plain Content-Transfer-Encoding: 7bit On Sat, Aug 1, 2026, at 09:07, Mingyu Wang wrote: > The IBM Remote Supervisor Adapter (RSA) and RSA II were out-of-band > management PCI/ISA cards introduced in the early 2000s for ancient > IBM eServer xSeries machines. IBM deprecated the RSA family and > replaced it with the Integrated Management Module (IMM) around 2008. > IBM subsequently sold its x86 server business to Lenovo in 2014, and > modern systems use entirely different BMC architectures. > > This hardware has been completely obsolete and out of production for > over 15 years. Surviving physical servers using this specific hardware > would be running ancient 32-bit processors vastly unsuited for modern > kernels. Technically I think there were three generations of 64-bit system that shipped with this, not just 32-bit. I see that end of support life for the x3650 M1 server was in 2018, which is still a long time ago, but not quite as old as you make it sound. As far as I can tell, SLES12-LTS still supports those servers until next year and runs the userspace for ibmasm, but obviously won't update their kernels. > Remove the driver entirely. > > Signed-off-by: Mingyu Wang <25181214217@stu.xidian.edu.cn> Acked-by: Arnd Bergmann