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SubjectRe: linux-next: build warning after merge of the block tree
On 04/18, Chao Yu wrote:
> On 2019/4/17 22:03, Jaegeuk Kim wrote:
> > On 04/17, Chao Yu wrote:
> >> Hi Jaegeuk,
> >>
> >> On 2019/4/17 10:31, Stephen Rothwell wrote:
> >>> Hi all,
> >>>
> >>> After merging the block tree, today's linux-next build (x86_64
> >>> allmodconfig) produced this warning:
> >>>
> >>> fs/f2fs/node.c: In function 'f2fs_remove_inode_page':
> >>> fs/f2fs/node.c:1193:47: warning: format '%zu' expects argument of type 'size_t', but argument 5 has type 'blkcnt_t' {aka 'long long unsigned int'} [-Wformat=]
> >>> "Inconsistent i_blocks, ino:%lu, iblocks:%zu",
> >>> ~~^
> >>> %llu
> >>> inode->i_ino, inode->i_blocks);
> >>> ~~~~~~~~~~~~~~~
> >>
> >> Could you please help to fix that as below in your dev branch directly?
> >>
> >> "Inconsistent i_blocks, ino:%lu, iblocks:%llu",
> >
> > We can just use "%lu"?
>
> We'd better follow sample in Documentation/core-api/printk-formats.rst:
>
> If <type> is dependent on a config option for its size (e.g., sector_t,
> blkcnt_t) or is architecture-dependent for its size (e.g., tcflag_t), use a
> format specifier of its largest possible type and explicitly cast to it.

Great, done. :)

Thanks,

>
> Example::
>
> printk("test: sector number/total blocks: %llu/%llu\n",
> (unsigned long long)sector, (unsigned long long)blockcount);
>
> Thanks,
>
> >
> >> inode->i_ino, (unsigned long long)inode->i_blocks)
> >>
> >>
> >> It looks that we need to fix below commits as well:
> >>
> >> f2fs: fix to avoid panic in dec_valid_block_count()
> >> f2fs: fix to avoid panic in dec_valid_node_count()
> >>
> >> Thanks,
> >>
> >>>
> >>> Introduced by commit
> >>>
> >>> 90ae238d9dac ("f2fs: fix to avoid panic in f2fs_remove_inode_page()")
> >>>
> >>> from the f2fs tree interacting with commit
> >>>
> >>> 72deb455b5ec ("block: remove CONFIG_LBDAF")
> >>>
> > .
> >

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