From: Nicola Vetrini Date: Thu, 25 Apr 2024 07:50:55 +0000 (+0200) Subject: x86/vhpet: address violations of MISRA C Rule 20.7 X-Git-Tag: 4.19.0-rc1~289 X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=c717d52a5d7aacfba768a7a2956ea9b634f295b7;p=xen.git x86/vhpet: address violations of MISRA C Rule 20.7 MISRA C Rule 20.7 states: "Expressions resulting from the expansion of macro parameters shall be enclosed in parentheses". Therefore, some macro definitions should gain additional parentheses to ensure that all current and future users will be safe with respect to expansions that can possibly alter the semantics of the passed-in macro parameter. No functional change. Signed-off-by: Nicola Vetrini Acked-by: Jan Beulich --- diff --git a/xen/arch/x86/hvm/hpet.c b/xen/arch/x86/hvm/hpet.c index 1db9c0b60e..5f456221cb 100644 --- a/xen/arch/x86/hvm/hpet.c +++ b/xen/arch/x86/hvm/hpet.c @@ -43,11 +43,11 @@ ((s_time_t)((((tick) > (h)->hpet_to_ns_limit) ? \ ~0ULL : (tick) * (h)->hpet_to_ns_scale) >> 10)) -#define timer_config(h, n) (h->hpet.timers[n].config) +#define timer_config(h, n) ((h)->hpet.timers[n].config) #define timer_enabled(h, n) (timer_config(h, n) & HPET_TN_ENABLE) #define timer_is_periodic(h, n) (timer_config(h, n) & HPET_TN_PERIODIC) #define timer_is_32bit(h, n) (timer_config(h, n) & HPET_TN_32BIT) -#define hpet_enabled(h) (h->hpet.config & HPET_CFG_ENABLE) +#define hpet_enabled(h) ((h)->hpet.config & HPET_CFG_ENABLE) #define timer_level(h, n) (timer_config(h, n) & HPET_TN_LEVEL) #define timer_int_route(h, n) MASK_EXTR(timer_config(h, n), HPET_TN_ROUTE)