static void xtensa_wsr()

in kernel/hw_breakpoint.c [91:131]

• 33 lines of code
• 7 McCabe index (conditional complexity)

static void xtensa_wsr(unsigned long v, u8 sr)
{
	/* We don't have indexed wsr and creating instruction dynamically
	 * doesn't seem worth it given how small XCHAL_NUM_IBREAK and
	 * XCHAL_NUM_DBREAK are. Thus the switch. In case build breaks here
	 * the switch below needs to be extended.
	 */
	BUILD_BUG_ON(XCHAL_NUM_IBREAK > 2);
	BUILD_BUG_ON(XCHAL_NUM_DBREAK > 2);

	switch (sr) {
#if XCHAL_NUM_IBREAK > 0
	case SREG_IBREAKA + 0:
		xtensa_set_sr(v, SREG_IBREAKA + 0);
		break;
#endif
#if XCHAL_NUM_IBREAK > 1
	case SREG_IBREAKA + 1:
		xtensa_set_sr(v, SREG_IBREAKA + 1);
		break;
#endif

#if XCHAL_NUM_DBREAK > 0
	case SREG_DBREAKA + 0:
		xtensa_set_sr(v, SREG_DBREAKA + 0);
		break;
	case SREG_DBREAKC + 0:
		xtensa_set_sr(v, SREG_DBREAKC + 0);
		break;
#endif
#if XCHAL_NUM_DBREAK > 1
	case SREG_DBREAKA + 1:
		xtensa_set_sr(v, SREG_DBREAKA + 1);
		break;

	case SREG_DBREAKC + 1:
		xtensa_set_sr(v, SREG_DBREAKC + 1);
		break;
#endif
	}
}