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a5c1cb63dd
Not only memcpy() is faster than pointer copy, but also let code more clearer and simple, which can avoid compiling warning (the original implementation copy registers by exceeding member array border). The related warning (with allmodconfig under tile): CC arch/tile/kernel/kgdb.o arch/tile/kernel/kgdb.c: In function 'sleeping_thread_to_gdb_regs': arch/tile/kernel/kgdb.c:140:31: warning: iteration 53u invokes undefined behavior [-Waggressive-loop-optimizations] *(ptr++) = thread_regs->regs[reg]; ^ arch/tile/kernel/kgdb.c:139:2: note: containing loop for (reg = 0; reg <= TREG_LAST_GPR; reg++) ^ Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>