linux-kernel - [PATCH] scripts/gdb: Fix dentry

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Message-ID: <20250619225105.320729-1-florian.fainelli@broadcom.com>
Date: Thu, 19 Jun 2025 15:51:05 -0700
From: Florian Fainelli <florian.fainelli@...adcom.com>
To: linux-kernel@...r.kernel.org
Cc: Florian Fainelli <florian.fainelli@...adcom.com>,
	Jan Kiszka <jan.kiszka@...mens.com>,
	Kieran Bingham <kbingham@...nel.org>,
	Al Viro <viro@...iv.linux.org.uk>,
	Jeff Layton <jlayton@...nel.org>,
	Jan Kara <jack@...e.cz>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH] scripts/gdb: Fix dentry_name() lookup

The "d_iname" member was replaced with "d_shortname.string" in the
commit referenced in the Fixes tag. This prevented the GDB script
"lx-mount" command to properly function:

(gdb) lx-mounts
      mount          super_block     devname pathname fstype options
0xff11000002d21180 0xff11000002d24800 rootfs / rootfs rw 0 0
0xff11000002e18a80 0xff11000003713000 /dev/root / ext4 rw,relatime 0 0
Python Exception <class 'gdb.error'>: There is no member named d_iname.
Error occurred in Python: There is no member named d_iname.

Fixes: 58cf9c383c5c ("dcache: back inline names with a struct-wrapped array of unsigned long")
Signed-off-by: Florian Fainelli <florian.fainelli@...adcom.com>
---
 scripts/gdb/linux/vfs.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/gdb/linux/vfs.py b/scripts/gdb/linux/vfs.py
index c77b9ce75f6d..b5fbb18ccb77 100644
--- a/scripts/gdb/linux/vfs.py
+++ b/scripts/gdb/linux/vfs.py
@@ -22,7 +22,7 @@ def dentry_name(d):
     if parent == d or parent == 0:
         return ""
     p = dentry_name(d['d_parent']) + "/"
-    return p + d['d_iname'].string()
+    return p + d['d_shortname']['string'].string()
 
 class DentryName(gdb.Function):
     """Return string of the full path of a dentry.
-- 
2.43.0