On Mon, Nov 07, 2022 at 10:29:55AM +0100, Greg KH wrote:
> On Mon, Nov 07, 2022 at 09:56:42AM +0100, Greg KH wrote:
> > On Thu, Nov 03, 2022 at 04:32:47PM +0100, Jonas Rabenstein wrote:
> > > Hi again,
> > > after sending this out, I noticed this is only a problem in the stable
> > > versions (starting from v6.0.3), as c09eb2e578eb1668bbc has been applied (as
> > > 03f148c159a250dd454) but not 0e253f7e558a3e250902 ("bpf: Return value in kprobe
> > > get_func_ip only for entry address") which makes always use of get_entry_ip.
> > > I therefore think, 0e253f7e558a3e250902 needs to be added to the stable v6.0
> > > series as well as otherwise it can't be compiled with -Werror if
> > > CONFIG_X6_KERNEL_IBT is set but CONFIG_FPROBE isn't.
> >
> > Ok, now queued up, thanks.
>
> Oops, this breaks the build, now dropping.
Sorry, 0e253f7e558a3e250902 ("bpf: Return value in kprobe get_func_ip only for
entry address") uses the macro KPROBE_FLAG_ON_FUNC_ENTRY that was introduced
in bf7a87f1075f67c286f7 ("kprobes: Add new KPROBE_FLAG_ON_FUNC_ENTRY kprobe
flag"). Applying those on top of v6.0.7 fixes the original compilation problem
(CONFIG_X6_KERNEL_IBT but !CONFIG_FPROBE) and should not break anything
- jonas
>
> greg k-h
