4.4-stable review patch. If anyone has any objections, please let me know.
------------------ From: David Daney <[email protected]> [ Upstream commit ab42632156becd35d3884ee5c14da2bedbf3149a ] For powerpc the __jump_table section in modules is not aligned, this causes a WARN_ON() splat when loading a module containing a __jump_table. Strict alignment became necessary with commit 3821fd35b58d ("jump_label: Reduce the size of struct static_key"), currently in linux-next, which uses the two least significant bits of pointers to __jump_table elements. Fix by forcing __jump_table to 8, which is the same alignment used for this section in the kernel proper. Link: http://lkml.kernel.org/r/[email protected] Reviewed-by: Jason Baron <[email protected]> Acked-by: Jessica Yu <[email protected]> Acked-by: Michael Ellerman <[email protected]> (powerpc) Tested-by: Sachin Sant <[email protected]> Signed-off-by: David Daney <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]> Signed-off-by: Sasha Levin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- scripts/module-common.lds | 2 ++ 1 file changed, 2 insertions(+) --- a/scripts/module-common.lds +++ b/scripts/module-common.lds @@ -19,4 +19,6 @@ SECTIONS { . = ALIGN(8); .init_array 0 : { *(SORT(.init_array.*)) *(.init_array) } + + __jump_table 0 : ALIGN(8) { KEEP(*(__jump_table)) } }
