misc: use QEMU_IS_ALIGNED

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>

diff --git a/exec.c b/exec.c
index 0f6b087f576c3ca476024d1795d1ceafa175c282..67e520d18ea5b65932f899b6c5981c74cfc15992 100644 (file)
--- a/exec.c
+++ b/exec.c
@@ -3895,7 +3895,7 @@ int ram_block_discard_range(RAMBlock *rb, uint64_t start, size_t length)
 
     uint8_t *host_startaddr = rb->host + start;
 
-    if ((uintptr_t)host_startaddr & (rb->page_size - 1)) {
+    if (!QEMU_PTR_IS_ALIGNED(host_startaddr, rb->page_size)) {
         error_report("ram_block_discard_range: Unaligned start address: %p",
                      host_startaddr);
         goto err;
@@ -3903,7 +3903,7 @@ int ram_block_discard_range(RAMBlock *rb, uint64_t start, size_t length)
 
     if ((start + length) <= rb->used_length) {
         bool need_madvise, need_fallocate;
-        if (length & (rb->page_size - 1)) {
+        if (!QEMU_IS_ALIGNED(length, rb->page_size)) {
             error_report("ram_block_discard_range: Unaligned length: %zx",
                          length);
             goto err;