Re: [EXTERNAL] Re: Build error for file chprojid_fail.c on ubuntu 16.04

["Darrick J. Wong" <djwong@kernel.org>]

On Sat, Apr 30, 2022 at 01:23:05PM +0000, Lili Deng wrote:
> Hi,
> 
> Could you please submit a patch for this issue? Add below lines before using them. Thanks!
> 
>         unsigned int        FS_IOC_FSSETXATTR;
>         unsigned int        FS_XFLAG_EXTSIZE;
>         unsigned int        FS_IOC_FSGETXATTR;

That will break the build on systems where the kernel headers actually
/do/ define those symbols.

Also, this is free software -- as a community member, *you* can propose
patches to fix things.

--D

> Thanks,
> Lili
> > -----Original Message-----
> > From: Darrick J. Wong <djwong@kernel.org>
> > Sent: Friday, March 19, 2021 12:22 AM
> > To: Lili Deng <Lili.Deng@microsoft.com>
> > Subject: [EXTERNAL] Re: Build error for file chprojid_fail.c on ubuntu 16.04
> > 
> > On Thu, Mar 18, 2021 at 09:20:30AM -0700, Darrick J. Wong wrote:
> > > On Thu, Mar 18, 2021 at 11:37:11AM +0000, Lili Deng wrote:
> > > >
> > https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgi
> > > > t.kernel.org%2Fpub%2Fscm%2Ffs%2Fxfs%2Fxfstests-
> > dev.git%2Fcommit%2Fsr
> > > >
> > c%2Fchprojid_fail.c%3Fid%3Df6ddaf130d5b0817278afe441fdde52f464f321
> > b&
> > > >
> > amp;data=04%7C01%7CLili.Deng%40microsoft.com%7C68254dbe593f41a2
> > 50b00
> > > >
> > 8d8ea29fb1e%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637
> > 51681332
> > > >
> > 7967886%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoi
> > V2luMzIi
> > > >
> > LCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=AfkOw5bow95qd
> > p7HoTl%
> > > > 2F4lMJzE11arE0zst0jrQVMf0%3D&amp;reserved=0
> > > >
> > > > Hi Darrick,
> > > >
> > > > I hit below build error on Ubuntu 16.04. Do you know how to work
> > > > around it? Thanks.  Gcc version is gcc version 5.4.0 20160609
> > > > (Ubuntu 5.4.0-6ubuntu1~16.04.12), make version is GNU Make 4.1
> > >
> > > Sorry about that. :/
> > >
> > > Does it work if you #include "global.h" in src/chprojid_fail.c?
> > 
> > Or, does applying this patch fix it?
> > 
> > https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore.
> > kernel.org%2Ffstests%2F1615975873-19206-1-git-send-email-
> > xuyang2018.jy%40cn.fujitsu.com%2FT%2F%23u&amp;data=04%7C01%7CLil
> > i.Deng%40microsoft.com%7C68254dbe593f41a250b008d8ea29fb1e%7C72
> > f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637516813327967886
> > %7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIi
> > LCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=7TSc%2FlROJm5
> > QN5X5se25Qow3Ws8MQCw%2BH5%2F3KaZkYko%3D&amp;reserved=0
> > 
> > --D
> > 
> > > --D
> > >
> > > >
> > > > Building include
> > > > Building lib
> > > > Building ltp
> > > > Building src
> > > >     [CC]    chprojid_fail
> > > > chprojid_fail.c: In function 'main':
> > > > chprojid_fail.c:26:17: error: storage size of 'fa' isn't known
> > > >   struct fsxattr fa;
> > > >                  ^
> > > > chprojid_fail.c:42:18: error: 'FS_IOC_FSGETXATTR' undeclared (first use in
> > this function)
> > > >   ret = ioctl(fd, FS_IOC_FSGETXATTR, &fa);
> > > >                   ^
> > > > chprojid_fail.c:42:18: note: each undeclared identifier is reported
> > > > only once for each function it appears in
> > > > chprojid_fail.c:51:19: error: 'FS_IOC_FSSETXATTR' undeclared (first use in
> > this function)
> > > >    ret = ioctl(fd, FS_IOC_FSSETXATTR, &fa);
> > > >                    ^
> > > > chprojid_fail.c:82:19: error: 'FS_XFLAG_EXTSIZE' undeclared (first use in
> > this function)
> > > >   fa.fsx_xflags |= FS_XFLAG_EXTSIZE;
> > > >                    ^
> > > > chprojid_fail.c:26:17: warning: unused variable 'fa' [-Wunused-variable]
> > > >   struct fsxattr fa;
> > > >                  ^
> > > > Makefile:88: recipe for target 'chprojid_fail' failed
> > > > make[2]: *** [chprojid_fail] Error 1
> > > > include/buildrules:30: recipe for target 'src' failed
> > > > make[1]: *** [src] Error 2
> > > > Makefile:50: recipe for target 'default' failed
> > > > make: *** [default] Error 2
> > > >
> > > > Thanks,
> > > > Lili