From: Steve French <smfrench@gmail.com>
To: David Howells <dhowells@redhat.com>
Cc: linux-fsdevel <linux-fsdevel@vger.kernel.org>,
CIFS <linux-cifs@vger.kernel.org>
Subject: Re: Compile warning with current kernel and netfs
Date: Tue, 11 May 2021 14:41:05 -0500 [thread overview]
Message-ID: <CAH2r5mvkFBkVv7ur_VietcR7xCaRTFboD7+KdZ=MvkW6QC-KTw@mail.gmail.com> (raw)
In-Reply-To: <2509400.1620738202@warthog.procyon.org.uk>
On Tue, May 11, 2021 at 8:03 AM David Howells <dhowells@redhat.com> wrote:
>
> Steve French <smfrench@gmail.com> wrote:
>
> > CC [M] /home/smfrench/cifs-2.6/fs/cifs/fscache.o
> > CHECK /home/smfrench/cifs-2.6/fs/cifs/fscache.c
> > /home/smfrench/cifs-2.6/fs/cifs/fscache.c: note: in included file
> > (through include/linux/fscache.h,
> > /home/smfrench/cifs-2.6/fs/cifs/fscache.h):
> > ./include/linux/netfs.h:93:15: error: don't know how to apply mode to
> > unsigned int enum netfs_read_source
>
> Yeah - that's a bit the checker doesn't know how to support. It's meant to
> make enum netfs_read_source-type struct members take less space. I think gcc
> and clang are both fine with it.
Looks like sparse has been recently updated to fix this. I pulled
from their git tree and rebuilt sparse to:
$ sparse --version
v0.6.3-341-g8af24329
and it works - no warnings (other than the "Skipping BTF generation
one - which is unrelated, see https://lkml.org/lkml/2020/11/16/1452)
make: Entering directory '/usr/src/linux-headers-5.13.0-051300rc1-generic'
CC [M] /home/smfrench/cifs-2.6/fs/cifs/fscache.o
CHECK /home/smfrench/cifs-2.6/fs/cifs/fscache.c
CC [M] /home/smfrench/cifs-2.6/fs/cifs/cache.o
CHECK /home/smfrench/cifs-2.6/fs/cifs/cache.c
LD [M] /home/smfrench/cifs-2.6/fs/cifs/cifs.o
MODPOST /home/smfrench/cifs-2.6/fs/cifs/Module.symvers
LD [M] /home/smfrench/cifs-2.6/fs/cifs/cifs.ko
BTF [M] /home/smfrench/cifs-2.6/fs/cifs/cifs.ko
--
Thanks,
Steve
prev parent reply other threads:[~2021-05-11 19:41 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-11 2:01 Compile warning with current kernel and netfs Steve French
2021-05-11 2:07 ` Matthew Wilcox
2021-05-11 3:28 ` Steve French
2021-05-11 3:30 ` Steve French
2021-05-11 13:03 ` David Howells
2021-05-11 19:41 ` Steve French [this message]
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