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Message-ID: <72f3d6cf-a03b-4a16-9983-77d3dd70b0ea@arm.com> Date: Fri, 6 Sep 2024 12:52:52 +0100 From: Vincenzo Frascino <vincenzo.frascino@....com> To: Christophe Leroy <christophe.leroy@...roup.eu>, linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org, linux-mm@...ck.org Cc: Andy Lutomirski <luto@...nel.org>, Thomas Gleixner <tglx@...utronix.de>, "Jason A . Donenfeld" <Jason@...c4.com>, Michael Ellerman <mpe@...erman.id.au>, Nicholas Piggin <npiggin@...il.com>, Naveen N Rao <naveen@...nel.org>, Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>, Dave Hansen <dave.hansen@...ux.intel.com>, "H . Peter Anvin" <hpa@...or.com>, Theodore Ts'o <tytso@....edu>, Arnd Bergmann <arnd@...db.de>, Andrew Morton <akpm@...ux-foundation.org>, Steven Rostedt <rostedt@...dmis.org>, Masami Hiramatsu <mhiramat@...nel.org>, Mathieu Desnoyers <mathieu.desnoyers@...icios.com> Subject: Re: [PATCH 9/9] vdso: Modify getrandom to include the correct namespace On 04/09/2024 18:26, Christophe Leroy wrote: > > > Le 03/09/2024 à 17:14, Vincenzo Frascino a écrit : ... > > Now build fails on powerpc because struct vgetrandom_opaque_params is unknown. > > x86 get it by chance via the following header inclusion chain: > > In file included from ./include/linux/random.h:10, > from ./include/linux/nodemask.h:98, > from ./include/linux/mmzone.h:18, > from ./include/linux/gfp.h:7, > from ./include/linux/xarray.h:16, > from ./include/linux/radix-tree.h:21, > from ./include/linux/idr.h:15, > from ./include/linux/kernfs.h:12, > from ./include/linux/sysfs.h:16, > from ./include/linux/kobject.h:20, > from ./include/linux/of.h:18, > from ./include/linux/clocksource.h:19, > from ./include/clocksource/hyperv_timer.h:16, > from ./arch/x86/include/asm/vdso/gettimeofday.h:21, > from ./include/vdso/datapage.h:164, > from arch/x86/entry/vdso/../../../../lib/vdso/getrandom.c:7, > from arch/x86/entry/vdso/vgetrandom.c:7: > > > > This tells me very little ;) Can you please provide more details? e.g. What is the error you are getting? How do I reproduce it? I am happy to include the required change as part of this series. Overall, the reason why I am doing this exercise it to sanitize the headers for all the architectures so that in future we do not have issues. It is good we find problems now. -- Regards, Vincenzo
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