module: Fix display of wrong module .text address
authorThomas Richter <tmricht@linux.ibm.com>
Wed, 18 Apr 2018 07:14:36 +0000 (09:14 +0200)
committerJessica Yu <jeyu@kernel.org>
Wed, 18 Apr 2018 20:59:46 +0000 (22:59 +0200)
commitbe71eda5383faa663efdba9ef54a6b8255e3c7f0
tree0abc0fe1fc5ecc7e9bacc2f8fac13eba3f8dd794
parent60cc43fc888428bb2f18f08997432d426a243338
module: Fix display of wrong module .text address

Reading file /proc/modules shows the correct address:
[root@s35lp76 ~]# cat /proc/modules | egrep '^qeth_l2'
qeth_l2 94208 1 - Live 0x000003ff80401000

and reading file /sys/module/qeth_l2/sections/.text
[root@s35lp76 ~]# cat /sys/module/qeth_l2/sections/.text
0x0000000018ea8363
displays a random address.

This breaks the perf tool which uses this address on s390
to calculate start of .text section in memory.

Fix this by printing the correct (unhashed) address.

Thanks to Jessica Yu for helping on this.

Fixes: ef0010a30935 ("vsprintf: don't use 'restricted_pointer()' when not restricting")
Cc: <stable@vger.kernel.org> # v4.15+
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Cc: Jessica Yu <jeyu@kernel.org>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
kernel/module.c