netdev - Re: [PATCH v6 08/16] mm/execmem, arch: convert remaining overrides of module

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Date: Sun, 28 Apr 2024 09:55:02 +0300
From: Mike Rapoport <rppt@...nel.org>
To: Song Liu <song@...nel.org>
Cc: linux-kernel@...r.kernel.org, Alexandre Ghiti <alexghiti@...osinc.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Björn Töpel <bjorn@...nel.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Christophe Leroy <christophe.leroy@...roup.eu>,
	"David S. Miller" <davem@...emloft.net>,
	Dinh Nguyen <dinguyen@...nel.org>,
	Donald Dutile <ddutile@...hat.com>,
	Eric Chanudet <echanude@...hat.com>,
	Heiko Carstens <hca@...ux.ibm.com>, Helge Deller <deller@....de>,
	Huacai Chen <chenhuacai@...nel.org>,
	Kent Overstreet <kent.overstreet@...ux.dev>,
	Luis Chamberlain <mcgrof@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	Michael Ellerman <mpe@...erman.id.au>,
	Nadav Amit <nadav.amit@...il.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Rick Edgecombe <rick.p.edgecombe@...el.com>,
	Russell King <linux@...linux.org.uk>,
	Sam Ravnborg <sam@...nborg.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
	Thomas Gleixner <tglx@...utronix.de>, Will Deacon <will@...nel.org>,
	bpf@...r.kernel.org, linux-arch@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-mips@...r.kernel.org,
	linux-mm@...ck.org, linux-modules@...r.kernel.org,
	linux-parisc@...r.kernel.org, linux-riscv@...ts.infradead.org,
	linux-s390@...r.kernel.org, linux-trace-kernel@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org, loongarch@...ts.linux.dev,
	netdev@...r.kernel.org, sparclinux@...r.kernel.org, x86@...nel.org
Subject: Re: [PATCH v6 08/16] mm/execmem, arch: convert remaining overrides
 of module_alloc to execmem

On Fri, Apr 26, 2024 at 12:01:34PM -0700, Song Liu wrote:
> On Fri, Apr 26, 2024 at 1:30 AM Mike Rapoport <rppt@...nel.org> wrote:
> >
> > From: "Mike Rapoport (IBM)" <rppt@...nel.org>
> >
> > Extend execmem parameters to accommodate more complex overrides of
> > module_alloc() by architectures.
> >
> > This includes specification of a fallback range required by arm, arm64
> > and powerpc, EXECMEM_MODULE_DATA type required by powerpc, support for
> > allocation of KASAN shadow required by s390 and x86 and support for
> > late initialization of execmem required by arm64.
> >
> > The core implementation of execmem_alloc() takes care of suppressing
> > warnings when the initial allocation fails but there is a fallback range
> > defined.
> >
> > Signed-off-by: Mike Rapoport (IBM) <rppt@...nel.org>
> > Acked-by: Will Deacon <will@...nel.org>
> 
> nit: We should probably move the logic for ARCH_WANTS_EXECMEM_LATE
> to a separate patch.

This would require to split arm64 and I prefer to keep all these changes
together. 

> Otherwise,
> 
> Acked-by: Song Liu <song@...nel.org>
 
Thanks!

-- 
Sincerely yours,
Mike.