Re: [REGRESSION] stable-rc/linux-5.10.y: (build) in vmlinux (Makefile:1212) [logspec:kbuild,kbuild.other]

[Greg KH <gregkh@linuxfoundation.org>]

On Tue, Mar 11, 2025 at 01:47:06PM +0000, KernelCI bot wrote:
> Hello,
> 
> New build issue found on stable-rc/linux-5.10.y:
> 
> ---
>  in vmlinux (Makefile:1212) [logspec:kbuild,kbuild.other]
> ---
> 
> - dashboard: https://d.kernelci.org/issue/maestro:d5c2be698989c7de46471109aae8df0339b713c1
> - giturl: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
> - commit HEAD:  a0e8dfa03993fda7b4d4b696c50f69726522abba
> 
> 
> Log excerpt:
> =====================================================
> .lds
> In file included from ./include/linux/kernel.h:15,
> net/ipv6/udp.c: In function ‘udp_v6_send_skb’:
> ./include/linux/minmax.h:20:35: warning: comparison of distinct
> pointer types lacks a cast
> ./include/linux/minmax.h:26:18: note: in expansion of macro ‘__typecheck’
> ./include/linux/minmax.h:36:31: note: in expansion of macro ‘__safe_cmp’
> ./include/linux/minmax.h:45:25: note: in expansion of macro ‘__careful_cmp’
> net/ipv6/udp.c:1213:28: note: in expansion of macro ‘min’
> In file included from ./include/linux/uaccess.h:7,
> net/ipv4/udp.c: In function ‘udp_send_skb’:
> ./include/linux/minmax.h:20:35: warning: comparison of distinct
> pointer types lacks a cast
> ./include/linux/minmax.h:26:18: note: in expansion of macro ‘__typecheck’
> ./include/linux/minmax.h:36:31: note: in expansion of macro ‘__safe_cmp’
> ./include/linux/minmax.h:45:25: note: in expansion of macro ‘__careful_cmp’
> net/ipv4/udp.c:926:28: note: in expansion of macro ‘min’

This warnings I can understand, we'll just have to live with that.

But:

> FAILED unresolved symbol filp_close

What is that from?

Seems to be from 890ed45bde80 ("acct: block access to kernel internal
filesystems")?  If so, that's really odd as this is not a new call to
this function, but just some additional ones.

thanks,

greg k-h