[v4] Tame a few "touch this, recompile the world" headers

[Qemu-devel] [PATCH v4 23/29] numa: Don't include hw/boards.h into sysemu/numa.h

Markus Armbruster posted 29 patches 6 years, 6 months ago

Diff against v1 v2 v3
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[Qemu-devel] [PATCH v4 23/29] numa: Don't include hw/boards.h into sysemu/numa.h

Posted by Markus Armbruster 6 years, 6 months ago

sysemu/numa.h includes hw/boards.h just for the CPUArchId typedef, at
the cost of pulling in more than two dozen extra headers indirectly.

I could move the typedef from hw/boards.h to qemu/typedefs.h.  But
it's used in just two headers: boards.h and numa.h.

I could move it to another header both its users include.
exec/cpu-common.h seems to be the least bad fit.

But I'm keeping this simple & stupid: declare the struct tag in
numa.h.

Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
---
 include/hw/boards.h   | 2 +-
 include/sysemu/numa.h | 9 +++++++--
 hw/mem/pc-dimm.c      | 1 +
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/include/hw/boards.h b/include/hw/boards.h
index 67e551636a..739d109fe1 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -86,7 +86,7 @@ void machine_class_allow_dynamic_sysbus_dev(MachineClass *mc, const char *type);
  * @props - CPU object properties, initialized by board
  * #vcpus_count - number of threads provided by @cpu object
  */
-typedef struct {
+typedef struct CPUArchId {
     uint64_t arch_id;
     int64_t vcpus_count;
     CpuInstanceProperties props;
diff --git a/include/sysemu/numa.h b/include/sysemu/numa.h
index 01a263eba2..4c4c1dee9b 100644
--- a/include/sysemu/numa.h
+++ b/include/sysemu/numa.h
@@ -4,7 +4,10 @@
 #include "qemu/bitmap.h"
 #include "sysemu/sysemu.h"
 #include "sysemu/hostmem.h"
-#include "hw/boards.h"
+#include "qapi/qapi-types-machine.h"
+#include "exec/cpu-common.h"
+
+struct CPUArchId;
 
 extern int nb_numa_nodes;   /* Number of NUMA nodes */
 extern bool have_numa_distance;
@@ -32,5 +35,7 @@ void numa_legacy_auto_assign_ram(MachineClass *mc, NodeInfo *nodes,
                                  int nb_nodes, ram_addr_t size);
 void numa_default_auto_assign_ram(MachineClass *mc, NodeInfo *nodes,
                                   int nb_nodes, ram_addr_t size);
-void numa_cpu_pre_plug(const CPUArchId *slot, DeviceState *dev, Error **errp);
+void numa_cpu_pre_plug(const struct CPUArchId *slot, DeviceState *dev,
+                       Error **errp);
+
 #endif
diff --git a/hw/mem/pc-dimm.c b/hw/mem/pc-dimm.c
index 1f3e676066..dea48f9163 100644
--- a/hw/mem/pc-dimm.c
+++ b/hw/mem/pc-dimm.c
@@ -19,6 +19,7 @@
  */
 
 #include "qemu/osdep.h"
+#include "hw/boards.h"
 #include "hw/mem/pc-dimm.h"
 #include "hw/qdev-properties.h"
 #include "migration/vmstate.h"
-- 
2.21.0