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authorMarkus Armbruster <armbru@redhat.com>2025-09-23 11:10:00 +0200
committerMarkus Armbruster <armbru@redhat.com>2025-10-01 08:33:24 +0200
commitbcb536cabe108e71e2900cdd605f5b4e59ac3e1f (patch)
tree947cdd20746872e40e040007951482e933d5beb1 /hw/display/virtio-gpu.c
parente0c6c38738501ff4f79864ab2b10622433317711 (diff)
downloadfocaccia-qemu-bcb536cabe108e71e2900cdd605f5b4e59ac3e1f.tar.gz
focaccia-qemu-bcb536cabe108e71e2900cdd605f5b4e59ac3e1f.zip
error: Kill @error_warn
We added @error_warn some two years ago in commit 3ffef1a55ca (error:
add global &error_warn destination).  It has multiple issues:

* error.h's big comment was not updated for it.

* Function contracts were not updated for it.

* ERRP_GUARD() is unaware of @error_warn, and fails to mask it from
  error_prepend() and such.  These crash on @error_warn, as pointed
  out by Akihiko Odaki.

All fixable.  However, after more than two years, we had just of 15
uses, of which the last few patches removed seven as unclean or
otherwise undesirable, adding back five elsewhere.  I didn't look
closely enough at the remaining seven to decide whether they are
desirable or not.

I don't think this feature earns its keep.  Drop it.

Thanks-to: Akihiko  Odaki <odaki@rsg.ci.i.u-tokyo.ac.jp>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-ID: <20250923091000.3180122-14-armbru@redhat.com>
Reviewed-by: Akihiko Odaki <odaki@rsg.ci.i.u-tokyo.ac.jp>
Diffstat (limited to 'hw/display/virtio-gpu.c')
-rw-r--r--hw/display/virtio-gpu.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c
index 0a1a625b0e..de35902213 100644
--- a/hw/display/virtio-gpu.c
+++ b/hw/display/virtio-gpu.c
@@ -242,6 +242,7 @@ static uint32_t calc_image_hostmem(pixman_format_code_t pformat,
 static void virtio_gpu_resource_create_2d(VirtIOGPU *g,
                                           struct virtio_gpu_ctrl_command *cmd)
 {
+    Error *err = NULL;
     pixman_format_code_t pformat;
     struct virtio_gpu_simple_resource *res;
     struct virtio_gpu_resource_create_2d c2d;
@@ -293,7 +294,8 @@ static void virtio_gpu_resource_create_2d(VirtIOGPU *g,
                 c2d.width,
                 c2d.height,
                 c2d.height ? res->hostmem / c2d.height : 0,
-                &error_warn)) {
+                &err)) {
+            warn_report_err(err);
             goto end;
         }
     }
@@ -1282,6 +1284,7 @@ static int virtio_gpu_load(QEMUFile *f, void *opaque, size_t size,
                            const VMStateField *field)
 {
     VirtIOGPU *g = opaque;
+    Error *err = NULL;
     struct virtio_gpu_simple_resource *res;
     uint32_t resource_id, pformat;
     int i;
@@ -1317,7 +1320,8 @@ static int virtio_gpu_load(QEMUFile *f, void *opaque, size_t size,
                                              res->width,
                                              res->height,
                                              res->height ? res->hostmem / res->height : 0,
-                                             &error_warn)) {
+                                             &err)) {
+            warn_report_err(err);
             g_free(res);
             return -EINVAL;
         }