From: Dan Carpenter <dan.carpenter@oracle.com>
To: Gao Xiang <gaoxiang25@huawei.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
devel@driverdev.osuosl.org, linux-erofs@lists.ozlabs.org,
Chao Yu <yuchao0@huawei.com>, LKML <linux-kernel@vger.kernel.org>,
weidu.du@huawei.com, Miao Xie <miaoxie@huawei.com>
Subject: Re: [PATCH 0/8] staging: erofs: error handing and more tracepoints
Date: Tue, 18 Sep 2018 16:03:37 +0300 [thread overview]
Message-ID: <20180918130337.jtq6ziqp6efr3fq4@mwanda> (raw)
In-Reply-To: <e940cdaf-faeb-7f60-b5ca-5f4d6af450be@huawei.com>
On Tue, Sep 18, 2018 at 08:31:22PM +0800, Gao Xiang wrote:
> (I have no clang environment to build kernel yet... :( I will try later, but I have no idea why it happens,
> and it seems a false warning).
>
> Thanks,
> Gao Xiang
>
> >
> > Or is gcc just being "dumb" here? What about clang, have you tried
> > building it with that compiler as well?
Yeah. Gcc is wrong. Gcc used to be extra conservative and missed a
bunch of bugs, but I guess now they're going in to opposite direction?
Smatch gets this correct, but you have to rebuild the cross function DB
twice to make the warning go away. It could be because it starts out
with the old vle_get_logical_extent_head() information so it thinks it
knows how that function works.
regards,
dan carpenter
next prev parent reply other threads:[~2018-09-18 13:04 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-14 14:40 Gao Xiang
2018-09-14 14:40 ` [PATCH 1/8] staging: erofs: fix a missing endian conversion Gao Xiang
2018-09-14 14:40 ` [PATCH 2/8] staging: erofs: clean up z_erofs_map_blocks_iter Gao Xiang
2018-09-14 14:40 ` [PATCH 3/8] staging: erofs: complete error handing of z_erofs_map_blocks_iter Gao Xiang
2018-09-14 14:40 ` [PATCH 4/8] staging: erofs: fix a bug when appling cache strategy Gao Xiang
2018-09-14 14:40 ` [PATCH 5/8] staging: erofs: complete error handing of z_erofs_do_read_page Gao Xiang
2018-09-14 14:40 ` [PATCH 6/8] staging: erofs: avoid magic constants when initializing clusterbits Gao Xiang
2018-09-14 14:40 ` [PATCH 7/8] staging: erofs: add trace points for reading zipped data Gao Xiang
2018-09-14 14:40 ` [PATCH 8/8] staging: erofs: replace BUG_ON with DBG_BUGON in data.c Gao Xiang
2018-09-18 11:19 ` [PATCH 0/8] staging: erofs: error handing and more tracepoints Greg Kroah-Hartman
2018-09-18 12:02 ` Gao Xiang
2018-09-18 12:14 ` Greg Kroah-Hartman
2018-09-18 12:31 ` Gao Xiang
2018-09-18 13:03 ` Dan Carpenter [this message]
2018-09-18 13:09 ` Greg Kroah-Hartman
2018-09-18 13:20 ` Gao Xiang
2018-09-18 13:44 ` [PATCH] staging: erofs: initialize `pblk' with 0 first in `z_erofs_map_blocks_iter' Gao Xiang
2018-09-18 13:57 ` Greg Kroah-Hartman
2018-09-18 14:06 ` Gao Xiang
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