KVM: arm64: Sanely ratelimit sysreg messages

[linux-2.6-microblaze.git] / arch / arm64 / kvm / sys_regs.h

diff --git a/arch/arm64/kvm/sys_regs.h b/arch/arm64/kvm/sys_regs.h
index 9bca031..5a6fc30 100644 (file)
--- a/arch/arm64/kvm/sys_regs.h
+++ b/arch/arm64/kvm/sys_regs.h
@@ -62,11 +62,24 @@ struct sys_reg_desc {
 #define REG_HIDDEN_USER                (1 << 0) /* hidden from userspace ioctls */
 #define REG_HIDDEN_GUEST       (1 << 1) /* hidden from guest */
 
-static inline void print_sys_reg_instr(const struct sys_reg_params *p)
+static __printf(2, 3)
+inline void print_sys_reg_msg(const struct sys_reg_params *p,
+                                      char *fmt, ...)
 {
+       va_list va;
+
+       va_start(va, fmt);
        /* Look, we even formatted it for you to paste into the table! */
-       kvm_pr_unimpl(" { Op0(%2u), Op1(%2u), CRn(%2u), CRm(%2u), Op2(%2u), func_%s },\n",
+       kvm_pr_unimpl("%pV { Op0(%2u), Op1(%2u), CRn(%2u), CRm(%2u), Op2(%2u), func_%s },\n",
+                     &(struct va_format){ fmt, &va },
                      p->Op0, p->Op1, p->CRn, p->CRm, p->Op2, p->is_write ? "write" : "read");
+       va_end(va);
+}
+
+static inline void print_sys_reg_instr(const struct sys_reg_params *p)
+{
+       /* GCC warns on an empty format string */
+       print_sys_reg_msg(p, "%s", "");
 }
 
 static inline bool ignore_write(struct kvm_vcpu *vcpu,