* Michael Ellerman <mpe@xxxxxxxxxxxxxx> [2016-02-25 01:28:24]: > Currently we generate the module stub for ftrace_caller() at the bottom > of apply_relocate_add(). However apply_relocate_add() is potentially > called more than once per module, which means we will try to generate > the ftrace_caller() stub multiple times. > > Although the current code deals with that correctly, ie. it only > generates a stub the first time, it would be clearer to only try to > generate the stub once. > > Note also on first reading it may appear that we generate a different > stub for each section that requires relocation, but that is not the > case. The code in stub_for_addr() that searches for an existing stub > uses sechdrs[me->arch.stubs_section], ie. the single stub section for > this module. > > A cleaner approach is to only generate the ftrace_caller() stub once, > from module_finalize(). An additional benefit is we can clean the ifdefs > up a little. > > Finally we must propagate the const'ness of some of the pointers passed > to module_finalize(), but that is also an improvement. > > Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> For all of the patches in the series. Tested-by: Kamalesh Babulal <kamalesh@xxxxxxxxxxxxxxxxxx> Regards, Kamalesh. -- 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
