24 Sep
2024
24 Sep
'24
6:50 a.m.
On (24/09/24 14:49), Sergey Senozhatsky wrote:
On (24/09/24 07:21), Christophe JAILLET wrote: [..]
kfree_const() will not work if zram is built as a module. It works only for .rodata for kernel image. [1]
If so, then it is likely that it is not correctly used elsewhere.
https://elixir.bootlin.com/linux/v6.11/source/drivers/dax/kmem.c#L289 https://elixir.bootlin.com/linux/v6.11/source/drivers/firmware/arm_scmi/bus.... https://elixir.bootlin.com/linux/v6.11/source/drivers/input/touchscreen/chip...
OK there are too many users of kfree_const() in drivers/ so un-exporting it is not an option, that was a silly idea. We probably need to walk through them and make sure that they don't kfree_const() modules' .rodata