On Wed, 2016-13-04 at 12:53:20 UTC, Michael Ellerman wrote: > When livepatch tries to patch a function it takes the function address > and asks ftrace to install the livepatch handler at that location. > ftrace will look for an mcount call site at that exact address. > > On powerpc the mcount location is not the first instruction of the > function, and in fact it's not at a constant offset from the start of > the function. To accommodate this add a hook which arch code can > override to customise the behaviour. > > Signed-off-by: Torsten Duwe <duwe@xxxxxxx> > Signed-off-by: Balbir Singh <bsingharora@xxxxxxxxx> > Signed-off-by: Petr Mladek <pmladek@xxxxxxxx> > Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> Applied to powerpc next. https://git.kernel.org/powerpc/c/28e7cbd3e0f5fefec892842d13 cheers -- To unsubscribe from this list: send the line "unsubscribe live-patching" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
