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charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Organization: Intel Finland Oy - BIC 0357606-4 - c/o Alberga Business Park, 6 krs, Bertel Jungin Aukio 5, 02600 Espoo X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260518_003048_769041_F90A067D X-CRM114-Status: GOOD ( 13.45 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, May 18, 2026 at 09:24:35AM +0200, Geert Uytterhoeven wrote: > Hi Uwe, > > On Fri, 15 May 2026 at 18:48, Uwe Kleine-König (The Capable Hub) > wrote: > > My additional motivation for this effort is CHERI[1]. This is a hardware > > Nice! > > > extension that uses 128 bit pointers but unsigned long is still 64 bit. > > So with CHERI you cannot store pointers in unsigned long variables. > > Good luck fixing all implicit assumptions about this in the kernel! > Also, good luck convincing people to use uintptr_t instead ;-) > > https://lore.kernel.org/all/CAHk-=wj2OHy-5e+srG1fy+ZU00TmZ1NFp6kFLbVLMXHe7A1d-g@mail.gmail.com Yeah, I believe Linus will have a strong opinion about all this CHERI stuff :-) But let see, it might be surprising turn around. -- With Best Regards, Andy Shevchenko