ia64: remove some warnings.

This patch removes the following warnings and related ones.
Plus some cosmetics.

arch/ia64/kernel/patch.c:112: warning: passing argument 1 of 'paravirt_fc' makes integer from pointer without a cast
arch/ia64/kernel/patch.c:135: warning: passing argument 1 of 'paravirt_fc' makes integer from pointer without a cast
arch/ia64/kernel/patch.c:166: warning: passing argument 1 of 'paravirt_fc' makes integer from pointer without a cast
arch/ia64/kernel/patch.c:202: warning: passing argument 1 of 'paravirt_fc' makes integer from pointer without a cast
arch/ia64/kernel/patch.c:220: warning: passing argument 1 of 'paravirt_fc' makes integer from pointer without a cast

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Tony Luck <tony.luck@intel.com>

7 files changed, 47 insertions, 14 deletions

diff --git a/arch/ia64/include/asm/paravirt_privop.h b/arch/ia64/include/asm/paravirt_privop.h
index 4e40e62c4ab8..3d2951130b5f 100644
--- a/arch/ia64/include/asm/paravirt_privop.h
+++ b/arch/ia64/include/asm/paravirt_privop.h
@@ -33,7 +33,7 @@
  */
 
 struct pv_cpu_ops {
-        void (*fc)(unsigned long addr);
+        void (*fc)(void *addr);
         unsigned long (*thash)(unsigned long addr);
         unsigned long (*get_cpuid)(int index);
         unsigned long (*get_pmd)(int index);
@@ -248,7 +248,7 @@ void paravirt_cpu_asm_init(const struct pv_cpu_asm_switch *cpu_asm_switch);
                 "r15", "r16", "r17"
 
 #define PARAVIRT_REG_CLOBBERS1                                  \
-        "r2","r3", /*"r8",*/ "r9", "r10", "r11", "r14", \
+        "r2","r3", /*"r8",*/ "r9", "r10", "r11", "r14",         \
                 "r15", "r16", "r17"
 
 #define PARAVIRT_REG_CLOBBERS2                                  \
@@ -330,6 +330,15 @@ void paravirt_cpu_asm_init(const struct pv_cpu_asm_switch *cpu_asm_switch);
                       : PARAVIRT_OP(op), "0"(__##arg1)          \
                       : PARAVIRT_CLOBBERS1)
 
+#define PARAVIRT_BR1_VOID(op, type, arg1)                       \
+        register void *__##arg1 asm ("r8") = arg1;              \
+        register unsigned long ia64_clobber asm ("r8");         \
+        asm volatile (paravirt_alt_bundle(__PARAVIRT_BR,        \
+                                          PARAVIRT_TYPE(type))  \
+                      : "=r"(ia64_clobber)                      \
+                      : PARAVIRT_OP(op), "0"(__##arg1)          \
+                      : PARAVIRT_CLOBBERS1)
+
 #define PARAVIRT_BR2(op, type, arg1, arg2)                              \
         register unsigned long __##arg1 asm ("r8") = arg1;              \
         register unsigned long __##arg2 asm ("r9") = arg2;              \
@@ -357,6 +366,13 @@ void paravirt_cpu_asm_init(const struct pv_cpu_asm_switch *cpu_asm_switch);
                 return ia64_intri_res;                  \
         }
 
+#define PARAVIRT_DEFINE_CPU_OP1_VOID(op, type)          \
+        static inline void                              \
+        paravirt_ ## op (void *arg1)                    \
+        {                                               \
+                PARAVIRT_BR1_VOID(op, type, arg1);      \
+        }
+
 #define PARAVIRT_DEFINE_CPU_OP1(op, type)               \
         static inline void                              \
         paravirt_ ## op (unsigned long arg1)            \
@@ -381,7 +397,7 @@ void paravirt_cpu_asm_init(const struct pv_cpu_asm_switch *cpu_asm_switch);
         }
 
 
-PARAVIRT_DEFINE_CPU_OP1(fc, FC);
+PARAVIRT_DEFINE_CPU_OP1_VOID(fc, FC);
 PARAVIRT_DEFINE_CPU_OP1_RET(thash, THASH)
 PARAVIRT_DEFINE_CPU_OP1_RET(get_cpuid, GET_CPUID)
 PARAVIRT_DEFINE_CPU_OP1_RET(get_pmd, GET_PMD)
diff --git a/arch/ia64/include/asm/xen/privop.h b/arch/ia64/include/asm/xen/privop.h
index e5fbaeeb161a..fb4ec5e0b066 100644
--- a/arch/ia64/include/asm/xen/privop.h
+++ b/arch/ia64/include/asm/xen/privop.h
@@ -69,7 +69,7 @@
  *  may have different semantics depending on whether they are executed
  *  at PL0 vs PL!=0.  When paravirtualized, these instructions mustn't
  *  be allowed to execute directly, lest incorrect semantics result. */
-extern void xen_fc(unsigned long addr);
+extern void xen_fc(void *addr);
 extern unsigned long xen_thash(unsigned long addr);
 
 /* Note that "ttag" and "cover" are also privilege-sensitive; "ttag"
diff --git a/arch/ia64/kernel/paravirt.c b/arch/ia64/kernel/paravirt.c
index 158d52414e96..a21d7bb9c69c 100644
--- a/arch/ia64/kernel/paravirt.c
+++ b/arch/ia64/kernel/paravirt.c
@@ -70,7 +70,14 @@ struct pv_init_ops pv_init_ops =
         ia64_native_ ## name ## _func(unsigned long arg)        \
         {                                                       \
                 ia64_native_ ## name(arg);                      \
-        }                                                       \
+        }
+
+#define DEFINE_VOID_FUNC1_VOID(name)                            \
+        static void                                             \
+        ia64_native_ ## name ## _func(void *arg)                \
+        {                                                       \
+                ia64_native_ ## name(arg);                      \
+        }
 
 #define DEFINE_VOID_FUNC2(name)                                 \
         static void                                             \
@@ -78,7 +85,7 @@ struct pv_init_ops pv_init_ops =
                                       unsigned long arg1)       \
         {                                                       \
                 ia64_native_ ## name(arg0, arg1);               \
-        }                                                       \
+        }
 
 #define DEFINE_FUNC0(name)                      \
         static unsigned long                    \
@@ -94,7 +101,7 @@ struct pv_init_ops pv_init_ops =
                 return ia64_native_ ## name(arg);       \
         }                                               \
 
-DEFINE_VOID_FUNC1(fc);
+DEFINE_VOID_FUNC1_VOID(fc);
 DEFINE_VOID_FUNC1(intrin_local_irq_restore);
 
 DEFINE_VOID_FUNC2(ptcga);
@@ -308,6 +315,11 @@ ia64_native_setreg_func(int regnum, unsigned long val)
         ia64_native_ ## name ## _func(unsigned long arg);       \
         __DEFINE_FUNC(name, code)
 
+#define DEFINE_VOID_FUNC1_VOID(name, code)                      \
+        extern void                                             \
+        ia64_native_ ## name ## _func(void *arg);               \
+        __DEFINE_FUNC(name, code)
+
 #define DEFINE_VOID_FUNC2(name, code)                           \
         extern void                                             \
         ia64_native_ ## name ## _func(unsigned long arg0,       \
@@ -324,8 +336,8 @@ ia64_native_setreg_func(int regnum, unsigned long val)
         ia64_native_ ## name ## _func(type arg);        \
         __DEFINE_FUNC(name, code)
 
-DEFINE_VOID_FUNC1(fc,
-                  "fc r8\n");
+DEFINE_VOID_FUNC1_VOID(fc,
+                       "fc r8\n");
 DEFINE_VOID_FUNC1(intrin_local_irq_restore,
                   ";;\n"
                   "     cmp.ne p6, p7 = r8, r0\n"
diff --git a/arch/ia64/kernel/patch.c b/arch/ia64/kernel/patch.c
index 64c6f95daa34..68a1311db806 100644
--- a/arch/ia64/kernel/patch.c
+++ b/arch/ia64/kernel/patch.c
@@ -249,7 +249,7 @@ void ia64_patch_phys_stack_reg(unsigned long val)
         while (offp < end) {
                 ip = (u64) offp + *offp;
                 ia64_patch(ip, mask, imm);
-                ia64_fc(ip);
+                ia64_fc((void *)ip);
                 ++offp;
         }
         ia64_sync_i();
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index 28f982045f29..0344c6664485 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -70,7 +70,7 @@ static void kvm_flush_icache(unsigned long start, unsigned long len)
         int l;
 
         for (l = 0; l < (len + 32); l += 32)
-                ia64_fc(start + l);
+                ia64_fc((void *)(start + l));
 
         ia64_sync_i();
         ia64_srlz_i();
diff --git a/arch/ia64/kvm/vcpu.c b/arch/ia64/kvm/vcpu.c
index ecd526b55323..6839a52f7a41 100644
--- a/arch/ia64/kvm/vcpu.c
+++ b/arch/ia64/kvm/vcpu.c
@@ -390,7 +390,7 @@ void set_rse_reg(struct kvm_pt_regs *regs, unsigned long r1,
                 else
                         *rnat_addr = (*rnat_addr) & (~nat_mask);
 
-                ia64_setreg(_IA64_REG_AR_BSPSTORE, bspstore);
+                ia64_setreg(_IA64_REG_AR_BSPSTORE, (unsigned long)bspstore);
                 ia64_setreg(_IA64_REG_AR_RNAT, rnat);
         }
         local_irq_restore(psr);
diff --git a/arch/ia64/xen/xen_pv_ops.c b/arch/ia64/xen/xen_pv_ops.c
index bf3c74cb150f..5e2270a999fa 100644
--- a/arch/ia64/xen/xen_pv_ops.c
+++ b/arch/ia64/xen/xen_pv_ops.c
@@ -416,6 +416,11 @@ xen_intrin_local_irq_restore(unsigned long mask)
         xen_ ## name (unsigned long arg);       \
         __DEFINE_FUNC(name, code)
 
+#define DEFINE_VOID_FUNC1_VOID(name, code)      \
+        extern void                             \
+        xen_ ## name (void *arg);               \
+        __DEFINE_FUNC(name, code)
+
 #define DEFINE_VOID_FUNC2(name, code)           \
         extern void                             \
         xen_ ## name (unsigned long arg0,       \
@@ -530,8 +535,8 @@ DEFINE_FUNC0(get_itc,
              "(p6) hint @pause\n"
              "(p6) br.cond.spnt 888b\n");
 
-DEFINE_VOID_FUNC1(fc,
-                  "break " __stringify(HYPERPRIVOP_FC) "\n");
+DEFINE_VOID_FUNC1_VOID(fc,
+                       "break " __stringify(HYPERPRIVOP_FC) "\n");
 
 /*
  * psr_i_addr_addr = XEN_PSR_I_ADDR_ADDR