> -----Original Message----- > From: Vitaly Kuznetsov [mailto:vkuznets@xxxxxxxxxx] > Sent: Friday, April 7, 2017 04:27 > To: devel@xxxxxxxxxxxxxxxxxxxxxx; x86@xxxxxxxxxx > Cc: linux-kernel@xxxxxxxxxxxxxxx; KY Srinivasan <kys@xxxxxxxxxxxxx>; > Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>; Stephen Hemminger > <sthemmin@xxxxxxxxxxxxx>; Thomas Gleixner <tglx@xxxxxxxxxxxxx>; Ingo > Molnar <mingo@xxxxxxxxxx>; H. Peter Anvin <hpa@xxxxxxxxx>; Steven > Rostedt <rostedt@xxxxxxxxxxx>; Jork Loeser <Jork.Loeser@xxxxxxxxxxxxx> > Subject: [PATCH 4/7] x86/hyperv: implement rep hypercalls > diff --git a/arch/x86/include/asm/mshyperv.h > b/arch/x86/include/asm/mshyperv.h index 9a5f58b..a2c996b 100644 > --- a/arch/x86/include/asm/mshyperv.h > +++ b/arch/x86/include/asm/mshyperv.h > @@ -4,6 +4,7 @@ > #include <linux/types.h> > #include <linux/interrupt.h> > #include <linux/clocksource.h> > +#include <linux/nmi.h> > #include <asm/hyperv.h> > > /* > @@ -253,6 +254,26 @@ static inline u64 hv_do_fast_hypercall8(u16 code, > u64 input1) #endif } > > +static inline u64 hv_do_rep_hypercall(u16 code, u16 rep_count, void > *input, > + void *output) > +{ > + union hv_hypercall_input hc_input = { .code = code, > + .rep_count = rep_count}; Is there a way to statically verify the re-count not to exceed 12 bits? Could a dynamic check be justified? Perhaps a function comment? _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
