Helge Deller 54944f4547 parisc: BTLB: Fix crash when setting up BTLB at CPU bringup
commit 913b9d443a0180cf0de3548f1ab3149378998486 upstream.

When using hotplug and bringing up a 32-bit CPU, ask the firmware about the
BTLB information to set up the static (block) TLB entries.

For that write access to the static btlb_info struct is needed, but
since it is marked __ro_after_init the kernel segfaults with missing
write permissions.

Fix the crash by dropping the __ro_after_init annotation.

Fixes: e5ef93d02d6c ("parisc: BTLB: Initialize BTLB tables at CPU startup")
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # v6.6+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-02-23 09:25:03 +01:00
..
2023-08-31 12:20:12 -07:00
2023-09-05 10:15:22 -07:00
2023-09-05 10:09:31 -07:00
2024-02-16 19:10:52 +01:00