Since commit 511631011d39706ac81ee5e4c9084d61e5b4fd34, entitled
"x86: fix pointer type warning in arch/x86/mm/init_64.c:early_memtest", the following warning is produced for x86_64:
arch/x86/mm/init_64.c: In function âearly_memtestâ:
arch/x86/mm/init_64.c:520: warning: passing argument 2 of âfind_e820_area_sizeâ from incompatible pointer type
Before this commit, the compilation of this routine on my system was clean. I use gcc version 4.2.1. Was this the warning for i386 before the patch? I tried simple changes in the definition of find_e820_area_size, but only managed to push the warning on to the call to bad_addr_size. At that point I decided to let the experts find a proper fix. Note that the warning does no harm - I just get nervous about incompatible pointer warnings as it usually means that I have screwed something up.