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Peter Anvin" , Bjorn Helgaas , Jakub Kicinski , Theodore Ts'o , Eric Biggers , Simon Horman , Lukas Bulwahn Subject: Re: [PATCH] drivers: pcmcia: remove obsolete host controller drivers Message-ID: References: <20260309074226.25937-1-enelsonmoore@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260309074226.25937-1-enelsonmoore@gmail.com> Am Mon, Mar 09, 2026 at 12:41:48AM -0700 schrieb Ethan Nelson-Moore: > PCMCIA is almost completely obsolete (the last computers supporting it > natively were from ~2009), and the general consensus [1] seems to be > that support for it should be gradually removed from the kernel. > > In 2023, an initial step of removing all the PCMCIA char drivers was > taken in commit 9b12f050c76f ("char: pcmcia: remove all the drivers"), > and that has not been reverted, so it seems logical to continue this > process by removing more low-hanging fruit. > > These host controller drivers have had no meaningful changes since > their status was discussed in 2022 [2], and are unlikely to have any > remaining users. Remove them and a couple references to them > in comments. > > The i82365 and tcic drivers are for ISA-attached host controllers, > which are even less likely to be used nowadays than ones on other buses. > > The i82092 driver has almost certainly not been used in over 20 years. > It was broken by a null pointer dereference since the dawn of Git > history (2.6.12-rc2 in 2005) until someone fixed it in 2021 in commit > e39cdacf2f66 ("pcmcia: i82092: fix a null pointer dereference bug"). > From their dmesg log [3], it is clear they were testing in an emulated > environment and not on real hardware. > > i82365.h is used by drivers other than i82365 and is therefore retained. > > [1] https://lore.kernel.org/all/c5b39544-a4fb-4796-a046-0b9be9853787@app.fastmail.com/ > [2] https://lore.kernel.org/all/Y07d7rMvd5++85BJ@owl.dominikbrodowski.net/ > [3] https://lore.kernel.org/all/1624345891-4215-1-git-send-email-zheyuma97@gmail.com/ > > Signed-off-by: Ethan Nelson-Moore Applied to pcmcia-next. Thanks, Dominik