On Fri, 9 Feb 2007 16:07:38 +0100, Franck Bui-Huu <vagabon.xyz@xxxxxxxxx> wrote: > CC arch/mips/kernel/signal.o > arch/mips/kernel/signal.c: In function `sys_sigaction': > arch/mips/kernel/signal.c:266: warning: cast to pointer from integer of different size > > This warning is due to the following line: > > __get_user(new_ka.sa.sa_handler, &act->sa_handler); This usage of __get_user() should be absolutely legal. > new_ka.sa.sa_handler = (__sighandler_t) __gu_tmp; > > Here we try to cast an 'unsigned long long' into a 32 bits pointer and > that's the reason of the warning. This line is never executed on 32bit kernel and gcc optimize out. On 64-bit kernel, this line is executed without any problem without warning. I think this is a problem of __get_user() implementation or gcc itself. Though I can not find better solution yet, hacking the caller to avoid the warning would not be right things to to. --- Atsushi Nemoto
