Current value of maximum indentation for /proc/iomem and /proc/ioports is
not enough for comfortable PCI resources debugging when several bridges are
nested, so increase it from 5 to 15:
% lspci -tv
+-[0000:80]-+-00.0-[81]--
| +-01.0-[82]--
| +-03.0-[83-99]----00.0-[84-99]----04.0-[85-99]----00.0-[86-99]--+-00.0-[87]--
| | +-04.0-[88]--
| | +-08.0-[89]--
| | +-09.0-[8a]--
| | +-0c.0-[8b-95]----00.0-[8c-95]--+-00.0-[8d]--
| | | +-04.0-[8e]--
| | | +-08.0-[8f]--
| | | +-09.0-[90]--
| | | +-0c.0-[91]--
| | | +-10.0-[92]--+-00.0
| | | | \-00.1
% sudo cat /proc/iomem
...
f9000000000-f907fffffff : PCI Bus 0000:80
f9000100000-f90010fffff : PCI Bus 0000:83
f9000100000-f90010fffff : PCI Bus 0000:84
f9000100000-f90010fffff : PCI Bus 0000:85
f9000100000-f90010fffff : PCI Bus 0000:86
f9000100000-f90009fffff : PCI Bus 0000:8b
f9000100000-f90009fffff : PCI Bus 0000:8c
f9000100000-f90003fffff : PCI Bus 0000:92
f9000100000-f90001fffff : 0000:92:00.0
f9000100000-f90001fffff : qla2xx
f9000200000-f9002ffffff : 0000:92:00.1
f9000200000-f90002fffff : qla2xxx
f9000300000-f9000301fff : 0000:92:00.0
f9000300000-f9000301fff : qla2xxx
f9000302000-f9000303fff : 0000:92:00.1
f9000302000-f9000303fff : qla2xxx
f9000304000-f9000304fff : 0000:92:00.0
f9000304000-f9000304fff : qla2xxx
f9000305000-f9000305fff : 0000:92:00.1
f9000305000-f9000305fff : qla2xxx
Signed-off-by: Sergei Miroshnichenko <s.miroshnichenko@xxxxxxxxx>
---
kernel/resource.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/resource.c b/kernel/resource.c
index 833394f9c608..4b3b378fed19 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -83,7 +83,7 @@ static void *r_next(struct seq_file *m, void *v, loff_t *pos)
#ifdef CONFIG_PROC_FS
-enum { MAX_IORES_LEVEL = 5 };
+enum { MAX_IORES_LEVEL = 15 };
static void *r_start(struct seq_file *m, loff_t *pos)
__acquires(resource_lock)
--
2.24.1
