exec: Reduce tlb_set_dirty() declaration scope

tlb_set_dirty() is only used in accel/tcg/cputlb.c,
where it is defined. Declare it statically, removing
the stub.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240418192525.97451-11-philmd@linaro.org>
diff --git a/accel/stubs/tcg-stub.c b/accel/stubs/tcg-stub.c
index 8a496a2..dd890d6 100644
--- a/accel/stubs/tcg-stub.c
+++ b/accel/stubs/tcg-stub.c
@@ -18,10 +18,6 @@
 {
 }
 
-void tlb_set_dirty(CPUState *cpu, vaddr vaddr)
-{
-}
-
 int probe_access_flags(CPUArchState *env, vaddr addr, int size,
                        MMUAccessType access_type, int mmu_idx,
                        bool nonfault, void **phost, uintptr_t retaddr)
diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c
index 93b1ca8..e16d02a 100644
--- a/accel/tcg/cputlb.c
+++ b/accel/tcg/cputlb.c
@@ -1039,7 +1039,7 @@
 
 /* update the TLB corresponding to virtual page vaddr
    so that it is no longer dirty */
-void tlb_set_dirty(CPUState *cpu, vaddr addr)
+static void tlb_set_dirty(CPUState *cpu, vaddr addr)
 {
     int mmu_idx;
 
diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h
index 3e53501..9599e16 100644
--- a/include/exec/exec-all.h
+++ b/include/exec/exec-all.h
@@ -654,7 +654,6 @@
 #define WITH_MMAP_LOCK_GUARD()
 
 void tlb_reset_dirty(CPUState *cpu, ram_addr_t start1, ram_addr_t length);
-void tlb_set_dirty(CPUState *cpu, vaddr addr);
 void tlb_reset_dirty_range_all(ram_addr_t start, ram_addr_t length);
 
 MemoryRegionSection *