Re: backport "udf: Allocate name buffer in directory iterator on heap" to 5.15

[Greg KH <gregkh@linuxfoundation.org>]

On Sun, Nov 10, 2024 at 06:36:08PM +0100, Hauke Mehrtens wrote:
> Hi,
> 
> I am running into this compile error in 5.15.171 in OpenWrt on 32 bit
> systems. This problem was introduced with kernel 5.15.169.
> ```
> fs/udf/namei.c: In function 'udf_rename':
> fs/udf/namei.c:878:1: error: the frame size of 1144 bytes is larger than
> 1024 bytes [-Werror=frame-larger-than=]
>   878 | }
>       | ^
> cc1: all warnings being treated as errors
> make[2]: *** [scripts/Makefile.build:289: fs/udf/namei.o] Error 1
> make[1]: *** [scripts/Makefile.build:552: fs/udf] Error 2
> ```
> 
> This is fixed by this upstream commit:
> commit 0aba4860b0d0216a1a300484ff536171894d49d8
> Author: Jan Kara <jack@suse.cz>
> Date:   Tue Dec 20 12:38:45 2022 +0100
> 
>     udf: Allocate name buffer in directory iterator on heap
> 
> 
> Please backport this patch to 5.15 too.
> It was already backported to kernel 6.1.

I tried to take it as-is, but it broek the build.  Can you please submit
a tested version that actually works?

thanks,

greg k-h