mirror of https://gitee.com/openkylin/qemu.git
7b0263cb14
In the mtspr helper we attempt to check for "is the timer disabled" with "if (env->ttmr & TIMER_NONE)". This is wrong because TIMER_NONE is zero and the condition is always false (Coverity complains about the dead code.) The correct check would be to test whether the TTMR_M field in the register is equal to TIMER_NONE instead. However, the cpu_openrisc_timer_update() function checks whether the timer is enabled (it looks at cpu->env.is_counting, which is set to 0 via cpu_openrisc_count_stop() when the TTMR_M field is set to TIMER_NONE), so there's no need to check for "timer disabled" in the target/openrisc code. Instead, simply remove the dead code. Fixes: Coverity CID 1005812 Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Stafford Horne <shorne@gmail.com> Message-id: 20201103114654.18540-1-peter.maydell@linaro.org |
||
|---|---|---|
| .. | ||
| cpu-param.h | ||
| cpu.c | ||
| cpu.h | ||
| disas.c | ||
| exception.c | ||
| exception.h | ||
| exception_helper.c | ||
| fpu_helper.c | ||
| gdbstub.c | ||
| helper.h | ||
| insns.decode | ||
| interrupt.c | ||
| interrupt_helper.c | ||
| machine.c | ||
| meson.build | ||
| mmu.c | ||
| sys_helper.c | ||
| translate.c | ||