mirror of https://gitee.com/openkylin/linux.git
35138d52f1
There's logic in bcm_kona_smc() to ensure __bcm_kona_smc() gets called on CPU 0; if already executing on CPU 0, that function is called directly. The direct call is not protected from interrupts, however, which is not safe. Note that smp_call_function_single() is designed to handle the case where the target cpu is the current one. It also gets a reference to the CPU and disables IRQs across the call. So we can simplify things and at the same time be protected against interrupts by calling smp_call_function_single() unconditionally. Signed-off-by: Alex Elder <elder@linaro.org> Reviewed-by: Tim Kryger <tim.kryger@linaro.org> Reviewed-by: Markus Mayer <markus.mayer@linaro.org> Reviewed-by: Matt Porter <mporter@linaro.org> Signed-off-by: Matt Porter <mporter@linaro.org> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| bcm_5301x.c | ||
| bcm_kona_smc.c | ||
| bcm_kona_smc.h | ||
| bcm_kona_smc_asm.S | ||
| board_bcm281xx.c | ||
| board_bcm2835.c | ||
| board_bcm21664.c | ||
| kona.c | ||
| kona.h | ||