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[2003:f6:5f47:db04:9367:b55f:c405:6f2b]) by smtp.gmail.com with UTF8SMTPSA id ffacd0b85a97d-45da15a562dsm35387139f8f.33.2026.05.18.00.56.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 18 May 2026 00:56:03 -0700 (PDT) Date: Mon, 18 May 2026 09:56:02 +0200 From: Uwe =?utf-8?Q?Kleine-K=C3=B6nig_=28The_Capable_Hub=29?= To: Andy Shevchenko Cc: Geert Uytterhoeven , Dmitry Torokhov , Anshul Dalal , Michael Hennerich , Yassine Oudjana , Linus Walleij , Nicolas Ferre , Alexandre Belloni , Claudiu Beznea , Support Opensource , Nick Dyer , Hans de Goede , Job Noorman , Mika =?utf-8?B?UGVudHRpbMOk?= , Maxime Coquelin , Alexandre Torgue , Kees Cook , bui duc phuc , Thorsten Blum , Yauhen Kharuzhy , Sakari Ailus , Marco Crivellari , Minseong Kim , Ingo Molnar , Thomas Gleixner , Oleh Kuzhylnyi , Marek Vasut , Krzysztof Kozlowski , Geert Uytterhoeven , Josua Mayer , Michael Tretter , Jeff LaBundy , Javier Carrasco , David Heidelberg , Petr Hodina , Svyatoslav Ryhel , Johannes Kirchmair , Xichao Zhao , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, platform-driver-x86@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com Subject: Re: [PATCH v1] Input: Use named initializers for arrays of i2c_device_data Message-ID: References: <20260515164848.497608-2-u.kleine-koenig@baylibre.com> Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="ledpsosxjgbf2xjn" Content-Disposition: inline In-Reply-To: --ledpsosxjgbf2xjn Content-Type: text/plain; protected-headers=v1; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Subject: Re: [PATCH v1] Input: Use named initializers for arrays of i2c_device_data MIME-Version: 1.0 On Mon, May 18, 2026 at 10:30:35AM +0300, Andy Shevchenko wrote: > On Mon, May 18, 2026 at 09:24:35AM +0200, Geert Uytterhoeven wrote: > > Hi Uwe, > >=20 > > On Fri, 15 May 2026 at 18:48, Uwe Kleine-K=F6nig (The Capable Hub) > > wrote: > > > My additional motivation for this effort is CHERI[1]. This is a hardw= are > >=20 > > Nice! > >=20 > > > extension that uses 128 bit pointers but unsigned long is still 64 bi= t. > > > So with CHERI you cannot store pointers in unsigned long variables. > >=20 > > Good luck fixing all implicit assumptions about this in the kernel! > > Also, good luck convincing people to use uintptr_t instead ;-) > >=20 > > https://lore.kernel.org/all/CAHk-=3Dwj2OHy-5e+srG1fy+ZU00TmZ1NFp6kFLbVL= MXHe7A1d-g@mail.gmail.com >=20 > Yeah, I believe Linus will have a strong opinion about all this CHERI stu= ff :-) > But let see, it might be surprising turn around. Yeah, it's not yet the time to start that discussion, I want to have the patch stack in a better state before that. I think the strongest argument will be that "unsigned long" [...] is an integer type large enough to hold a pointer. just isn't true for CHERI. Best regards Uwe --ledpsosxjgbf2xjn Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEP4GsaTp6HlmJrf7Tj4D7WH0S/k4FAmoKxg8ACgkQj4D7WH0S /k75XQf/fJBvg+bkcjF1RD9zN6ORGpW8MCPpjekC79O2A1nW+vWJClXaxkKullcM RNcA6S+Y0Uw9HmLHEkyScdB1VYiKlnOw/gzCrSTCR9JK7CYN1rKq99EoMheR7+DD uVa7Rai/eEhJYIh7vpBfGS/QtapI3qrJCb9hfOrfkP16by8BWbMcqFzUpGd9CBPh pb6E63QmhOxL3fyFRcnpEzRCgyg3eTVKynQ+7tPmH2cU7leNveZhBkWfkLYDJWgM a6K+Do5D2xWle5UGHlxxgWvA3SdTvGEXpIXWD2JM67KsBrmKuAVx2Oxzh7rYfORT A1krybshSByxRK8iPTzSCW+n+EBR/A== =/va5 -----END PGP SIGNATURE----- --ledpsosxjgbf2xjn--