Hi Andrey,
On Wed Jul 1, 2026 at 3:43 PM CEST, Andrey Konovalov wrote:
> On Wed, Jul 1, 2026 at 12:03 PM Alexis Lothoré (eBPF Foundation)
> <[email protected]> wrote:
[...]
>> +config BPF_JIT_KASAN
>> + bool
>> + depends on HAVE_EBPF_JIT_KASAN
>> + default y if BPF_JIT && KASAN_GENERIC && KASAN_VMALLOC && VMAP_STACK
>
> I think it make sense to put KASAN_GENERIC into the "depends on"
> section, as __asan_load/storeX() are only defined for the Generic
> mode. SW_TAGS mode is expected to be soon implemented for x86-64, and
> that mode uses different checking function names.
I guess I can move most of the kconfig options that currently are in the
`default y if ...` into dedicated `depends on ...` lines, and just keep
a `default y if KASAN`, something like:
config BPF_JIT_KASAN
bool
depends on HAVE_EBPF_JIT_KASAN
depends on KASAN_GENERIC
depends on KASAN_VMALLOC
depends on VMAP_STACK
depends on BPF_JIT
default y if KASAN
> Would also be great to add description for this config option.
I can fill a help field with a basic description, but it will be visible
only by reading the Kconfig file, it will not appear in menuconfig
unless we make the knob user-selectable, which I would like to avoid.
Thanks,
Alexis
--
Alexis Lothoré, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
