> rtl818x_ioread8_idx: 151 bytes, 29 calls > rtl818x_ioread16_idx: 151 bytes, 11 calls > rtl818x_ioread32_idx: 151 bytes, 5 calls > rtl818x_iowrite8_idx: 157 bytes, 117 calls > rtl818x_iowrite16_idx: 158 bytes, 74 calls > rtl818x_iowrite32_idx: 157 bytes, 22 calls > > Each of these functions has a pair of mutex lock/unlock ops, > both of these ops perform atomic updates of memory (on x86, it boils down to > "lock cmpxchg %reg,mem" insn), which are 4-8 times more expensive than call+return. > > text data bss dec hex filename > 95894242 20860288 35991552 152746082 91ab862 vmlinux_before > 95872674 20860320 35991552 152724546 91a6442 vmlinux > > Signed-off-by: Denys Vlasenko <dvlasenk@xxxxxxxxxx> > CC: Larry Finger <Larry.Finger@xxxxxxxxxxxx> > CC: Chaoming Li <chaoming_li@xxxxxxxxxxxxxx> > CC: linux-wireless@xxxxxxxxxxxxxxx > CC: linux-kernel@xxxxxxxxxxxxxxx Thanks, applied to wireless-drivers-next.git. Kalle Valo -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
