[PATCH] kho: fix child node parsing for debugfs in/sub_fdts

[Andrew Morton]

On Fri, 13 Mar 2026 10:02:06 +0000 Pratyush Yadav <pratyush at kernel.org> wrote:

> On Mon, Mar 09 2026, ranxiaokai627 at 163.com wrote:
> 
> > From: Ran Xiaokai <ran.xiaokai at zte.com.cn>
> >
> > Commit e0c1731f5d57 ("kho: adopt radix tree for preserved memory tracking")
> > changed KHO_FDT_SUB_TREE_PROP_NAME from "fdt" to "preserved-data". However,
> > kho debugfs code still hard-coded the "fdt" string when parsing the
> > device tree, causing the debugfs node /debugfs/kho/in/sub_fdts/
> > fail to parse child nodes correctly.
> >
> > Fix this by including the header file and using KHO_FDT_SUB_TREE_PROP_NAME
> > instead of the hard-coded string.
> >
> > Fixes: e0c1731f5d57 ("kho: adopt radix tree for preserved memory tracking")
> > Signed-off-by: Ran Xiaokai <ran.xiaokai at zte.com.cn>
> 
> Breno's patch [0] also fixes this, but I'd rather have this go through
> hotfixes and get backported to stable, and Breno's series to build on
> top of this.
> 
> [0] https://lore.kernel.org/linux-mm/20260309-kho-v8-4-c3abcf4ac750@debian.org/

Confused.  This patch (kho: fix child node parsing for debugfs
in/sub_fdts) fixes the mm-unstable patch "kho: adopt radix tree for
preserved memory tracking".

So what are you suggesting be added to -stable?

(Please lay it all out very clearly, idenfifying patches by name!)