From: Mike Rapoport <rppt@kernel.org>
To: Greg Ungerer <gerg@linux-m68k.org>
Cc: linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
Anton Ivanov <anton.ivanov@cambridgegreys.com>,
Arnd Bergmann <arnd@arndb.de>,
"David S. Miller" <davem@davemloft.net>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Greentime Hu <green.hu@gmail.com>, Helge Deller <deller@gmx.de>,
"James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>,
Jeff Dike <jdike@addtoit.com>,
"Kirill A. Shutemov" <kirill@shutemov.name>,
Linus Torvalds <torvalds@linux-foundation.org>,
Mark Salter <msalter@redhat.com>,
Matt Turner <mattst88@gmail.com>, Michal Simek <monstr@monstr.eu>,
Richard Weinberger <richard@nod.at>,
Russell King <linux@armlinux.org.uk>,
Sam Creasey <sammy@sammy.net>, Vincent Chen <deanbo422@gmail.com>,
Vineet Gupta <Vineet.Gupta1@synopsys.com>,
linux-alpha@vger.kernel.org, linux-arch@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-c6x-dev@linux-c6x.org, linux-kernel@vger.kernel.org,
linux-m68k@lists.linux-m68k.org, linux-parisc@vger.kernel.org,
linux-um@lists.infradead.org, sparclinux@vger.kernel.org,
Mike Rapoport <rppt@linux.ibm.com>
Subject: Re: [PATCH 04/12] m68k: nommu: use pgtable-nopud instead of 4level-fixup
Date: Thu, 24 Oct 2019 08:35:34 +0300 [thread overview]
Message-ID: <20191024053533.GA12281@rapoport-lnx> (raw)
In-Reply-To: <de03a882-fb1a-455c-7c60-84ab0c4f9674@linux-m68k.org>
Hi Greg,
On Thu, Oct 24, 2019 at 02:09:01PM +1000, Greg Ungerer wrote:
> Hi Mike,
>
> On 23/10/19 7:28 pm, Mike Rapoport wrote:
> >From: Mike Rapoport <rppt@linux.ibm.com>
> >
> >The generic nommu implementation of page table manipulation takes care of
> >folding of the upper levels and does not require fixups.
> >
> >Simply replace of include/asm-generic/4level-fixup.h with
> >include/asm-generic/pgtable-nopud.h.
> >
> >Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
> >---
> > arch/m68k/include/asm/pgtable_no.h | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> >diff --git a/arch/m68k/include/asm/pgtable_no.h b/arch/m68k/include/asm/pgtable_no.h
> >index c18165b..ccc4568 100644
> >--- a/arch/m68k/include/asm/pgtable_no.h
> >+++ b/arch/m68k/include/asm/pgtable_no.h
> >@@ -2,7 +2,7 @@
> > #ifndef _M68KNOMMU_PGTABLE_H
> > #define _M68KNOMMU_PGTABLE_H
> >-#include <asm-generic/4level-fixup.h>
> >+#include <asm-generic/pgtable-nopud.h>
> > /*
> > * (C) Copyright 2000-2002, Greg Ungerer <gerg@snapgear.com>
>
> This fails to compile for me (targeting m5208evb_defconfig):
>
> CC init/main.o
> In file included from ./arch/m68k/include/asm/pgtable_no.h:56:0,
> from ./arch/m68k/include/asm/pgtable.h:3,
> from ./include/linux/mm.h:99,
> from ./include/linux/ring_buffer.h:5,
> from ./include/linux/trace_events.h:6,
> from ./include/trace/syscall.h:7,
> from ./include/linux/syscalls.h:85,
> from init/main.c:21:
> ./include/asm-generic/pgtable.h:738:34: error: unknown type name ‘pmd_t’
> static inline int pmd_soft_dirty(pmd_t pmd)
> ^
...
> scripts/Makefile.build:265: recipe for target 'init/main.o' failed
> make[1]: *** [init/main.o] Error 1
> Makefile:1649: recipe for target 'init' failed
> make: *** [init] Error 2
The hunk below fixes the build.
diff --git a/arch/m68k/include/asm/page.h b/arch/m68k/include/asm/page.h
index c00b67a..05e1e1e 100644
--- a/arch/m68k/include/asm/page.h
+++ b/arch/m68k/include/asm/page.h
@@ -21,7 +21,7 @@
/*
* These are used to make use of C type-checking..
*/
-#if CONFIG_PGTABLE_LEVELS == 3
+#if !defined(CONFIG_MMU) || CONFIG_PGTABLE_LEVELS == 3
typedef struct { unsigned long pmd[16]; } pmd_t;
#define pmd_val(x) ((&x)->pmd[0])
#define __pmd(x) ((pmd_t) { { (x) }, })
> Regards
> Greg
>
--
Sincerely yours,
Mike.
next prev parent reply other threads:[~2019-10-24 5:35 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-23 9:28 [PATCH 00/12] mm: remove __ARCH_HAS_4LEVEL_HACK Mike Rapoport
2019-10-23 9:28 ` [PATCH 01/12] alpha: use pgtable-nop4d instead of 4level-fixup Mike Rapoport
2019-10-23 9:28 ` [PATCH 02/12] arm: nommu: use pgtable-nopud " Mike Rapoport
2019-10-23 9:40 ` Russell King - ARM Linux admin
2019-10-23 9:28 ` [PATCH 03/12] c6x: " Mike Rapoport
2019-10-23 9:28 ` [PATCH 04/12] m68k: nommu: " Mike Rapoport
2019-10-24 4:09 ` Greg Ungerer
2019-10-24 5:35 ` Mike Rapoport [this message]
2019-10-24 6:23 ` Greg Ungerer
2019-10-23 9:28 ` [PATCH 05/12] m68k: mm: use pgtable-nopXd " Mike Rapoport
2019-10-24 4:12 ` Greg Ungerer
2019-10-25 5:52 ` kbuild test robot
2019-10-23 9:28 ` [PATCH 06/12] microblaze: use pgtable-nopmd " Mike Rapoport
2019-10-25 2:17 ` kbuild test robot
2019-10-25 8:24 ` Michal Simek
2019-10-25 20:33 ` Mike Rapoport
2019-10-23 9:28 ` [PATCH 07/12] nds32: " Mike Rapoport
2019-10-23 9:28 ` [PATCH 08/12] parisc: use pgtable-nopXd " Mike Rapoport
2019-10-23 10:20 ` Rolf Eike Beer
2019-10-24 8:51 ` Mike Rapoport
2019-10-24 9:35 ` Peter Rosin
2019-10-24 9:50 ` Mike Rapoport
2019-10-24 12:02 ` Helge Deller
2019-10-24 16:00 ` Mike Rapoport
2019-10-23 9:28 ` [PATCH 09/12] sparc32: use pgtable-nopud " Mike Rapoport
2019-10-23 19:59 ` [PATCH v2 " Mike Rapoport
2019-10-23 21:21 ` David Miller
2019-10-23 9:28 ` [PATCH 10/12] um: remove unused pxx_offset_proc() and addr_pte() functions Mike Rapoport
2019-10-23 9:29 ` [PATCH 11/12] um: add support for folded p4d page tables Mike Rapoport
2019-10-23 9:29 ` [PATCH 12/12] mm: remove __ARCH_HAS_4LEVEL_HACK and include/asm-generic/4level-fixup.h Mike Rapoport
2019-10-23 10:25 ` [PATCH 00/12] mm: remove __ARCH_HAS_4LEVEL_HACK Linus Torvalds
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20191024053533.GA12281@rapoport-lnx \
--to=rppt@kernel.org \
--cc=James.Bottomley@HansenPartnership.com \
--cc=Vineet.Gupta1@synopsys.com \
--cc=akpm@linux-foundation.org \
--cc=anton.ivanov@cambridgegreys.com \
--cc=arnd@arndb.de \
--cc=davem@davemloft.net \
--cc=deanbo422@gmail.com \
--cc=deller@gmx.de \
--cc=geert@linux-m68k.org \
--cc=gerg@linux-m68k.org \
--cc=green.hu@gmail.com \
--cc=jdike@addtoit.com \
--cc=kirill@shutemov.name \
--cc=linux-alpha@vger.kernel.org \
--cc=linux-arch@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-c6x-dev@linux-c6x.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-m68k@lists.linux-m68k.org \
--cc=linux-mm@kvack.org \
--cc=linux-parisc@vger.kernel.org \
--cc=linux-um@lists.infradead.org \
--cc=linux@armlinux.org.uk \
--cc=mattst88@gmail.com \
--cc=monstr@monstr.eu \
--cc=msalter@redhat.com \
--cc=richard@nod.at \
--cc=rppt@linux.ibm.com \
--cc=sammy@sammy.net \
--cc=sparclinux@vger.kernel.org \
--cc=torvalds@linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).