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From: Arnd Bergmann <arnd@arndb.de>
To: Naresh Kamboju <naresh.kamboju@linaro.org>
Cc: Linux-Next Mailing List <linux-next@vger.kernel.org>,
	open list <linux-kernel@vger.kernel.org>,
	Linux-sh list <linux-sh@vger.kernel.org>,
	Stephen Rothwell <sfr@canb.auug.org.au>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>, Will Deacon <will@kernel.org>,
	Waiman Long <longman@redhat.com>,
	Boqun Feng <boqun.feng@gmail.com>,
	Minchan Kim <minchan@kernel.org>, Arnd Bergmann <arnd@arndb.de>,
	Andrew Morton <akpm@linux-foundation.org>,
	Mike Galbraith <umgwanakikbuti@gmail.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Sergey Senozhatsky <senozhatsky@chromium.org>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Rich Felker <dalias@libc.org>,
	lkft-triage@lists.linaro.org
Subject: Re: spinlock.c:306:9: error: implicit declaration of function '__raw_write_lock_nested'
Date: Tue, 23 Nov 2021 14:19:56 +0100	[thread overview]
Message-ID: <CAK8P3a1NhpNxWfj3gDnuf4bWK_fiE8cjcRyN7e8j95NmvOzbGw@mail.gmail.com> (raw)
In-Reply-To: <CA+G9fYtH2JR=L0cPoOEqsEGrZW_uOJgX6qLGMe_hbLpBtjVBwA@mail.gmail.com>

On Tue, Nov 23, 2021 at 12:38 PM Naresh Kamboju
<naresh.kamboju@linaro.org> wrote:
>
> While building Linux next 20211123 tag for sh with gcc-11
> following warnings / errors noticed.

Nothing in here looks like a recent regression from either the kernel
or gcc-11.

> make --silent --keep-going --jobs=8
> O=/home/tuxbuild/.cache/tuxmake/builds/current ARCH=sh
> CROSS_COMPILE=sh4-linux-gnu- 'CC=sccache sh4-linux-gnu-gcc'
> 'HOSTCC=sccache gcc'
>   Generating include/generated/machtypes.h
> <stdin>:1517:2: warning: #warning syscall clone3 not implemented [-Wcpp]
> <stdin>:1559:2: warning: #warning syscall futex_waitv not implemented [-Wcpp]

These happen with any compiler version, someone needs to write the correct
entry code for clone3 and hook up futex_waitv().

> include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements

These are old bugs, they show up in any kernel version with gcc-8 or higher.

> fs/mpage.c:336:1: warning: the frame size of 1092 bytes is larger than

I see these going back to gcc-6, it looks like this is caused by
CONFIG_PAGE_SIZE_64KB.

     Arnd

  reply	other threads:[~2021-11-23 13:20 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-23 11:38 spinlock.c:306:9: error: implicit declaration of function '__raw_write_lock_nested' Naresh Kamboju
2021-11-23 13:19 ` Arnd Bergmann [this message]
2021-11-23 14:48   ` Geert Uytterhoeven
2021-11-23 14:50     ` Sebastian Andrzej Siewior
2021-11-23 16:07       ` [PATCH] locking: Fixup write_lock_nested() implementation Sebastian Andrzej Siewior
2021-11-23 17:01         ` [PATCH v2] " Sebastian Andrzej Siewior
2021-11-23 22:52           ` Stephen Rothwell
2021-11-24 10:01   ` spinlock.c:306:9: error: implicit declaration of function '__raw_write_lock_nested' Rob Landley
2021-11-24 10:43     ` Arnd Bergmann
2021-11-24  7:31 ` Rob Landley
2021-11-24  7:49   ` Arnd Bergmann
2021-11-24 13:15     ` André Almeida
2021-11-24 14:21       ` Arnd Bergmann
2021-11-24 13:21     ` [PATCH 1/1] futex: Wireup futex_waitv syscall André Almeida
2021-11-24 13:49       ` Geert Uytterhoeven
2021-11-24 14:29       ` Arnd Bergmann
2021-11-24 15:56         ` André Almeida
2021-11-24 23:18         ` Thomas Gleixner
2021-11-24 17:23       ` Max Filippov
2021-11-24 23:07       ` Michael Ellerman
2021-11-24 23:38     ` spinlock.c:306:9: error: implicit declaration of function '__raw_write_lock_nested' Rob Landley
2021-11-25  7:25       ` Arnd Bergmann
2021-11-25 12:10         ` Rob Landley
2021-11-26 23:51           ` Stafford Horne

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