KVM: arm64: vgic-its: Make vgic_its_cmd_handle_mapi similar to other handlers

vgic_its_cmd_handle_mapi has an extra "subcmd" argument, which is
already contained in the command buffer that all command handlers
obtain from the command queue. Let's drop it, as it is not that
useful.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

1 files changed, 5 insertions, 6 deletions

diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c
index 996e3e19b53f..ec7e07bc2559 100644
--- a/virt/kvm/arm/vgic/vgic-its.c
+++ b/virt/kvm/arm/vgic/vgic-its.c
@@ -688,7 +688,7 @@ static void vgic_its_free_collection(struct vgic_its *its, u32 coll_id)
  * Must be called with its_lock mutex held.
  */
 static int vgic_its_cmd_handle_mapi(struct kvm *kvm, struct vgic_its *its,
-                                    u64 *its_cmd, u8 subcmd)
+                                    u64 *its_cmd)
 {
         u32 device_id = its_cmd_get_deviceid(its_cmd);
         u32 event_id = its_cmd_get_id(its_cmd);
@@ -711,7 +711,7 @@ static int vgic_its_cmd_handle_mapi(struct kvm *kvm, struct vgic_its *its,
                 new_coll = collection;
         }
 
-        if (subcmd == GITS_CMD_MAPTI)
+        if (its_cmd_get_command(its_cmd) == GITS_CMD_MAPTI)
                 lpi_nr = its_cmd_get_physical_id(its_cmd);
         else
                 lpi_nr = event_id;
@@ -999,11 +999,10 @@ static int vgic_its_cmd_handle_int(struct kvm *kvm, struct vgic_its *its,
 static int vgic_its_handle_command(struct kvm *kvm, struct vgic_its *its,
                                    u64 *its_cmd)
 {
-        u8 cmd = its_cmd_get_command(its_cmd);
         int ret = -ENODEV;
 
         mutex_lock(&its->its_lock);
-        switch (cmd) {
+        switch (its_cmd_get_command(its_cmd)) {
         case GITS_CMD_MAPD:
                 ret = vgic_its_cmd_handle_mapd(kvm, its, its_cmd);
                 break;
@@ -1011,10 +1010,10 @@ static int vgic_its_handle_command(struct kvm *kvm, struct vgic_its *its,
                 ret = vgic_its_cmd_handle_mapc(kvm, its, its_cmd);
                 break;
         case GITS_CMD_MAPI:
-                ret = vgic_its_cmd_handle_mapi(kvm, its, its_cmd, cmd);
+                ret = vgic_its_cmd_handle_mapi(kvm, its, its_cmd);
                 break;
         case GITS_CMD_MAPTI:
-                ret = vgic_its_cmd_handle_mapi(kvm, its, its_cmd, cmd);
+                ret = vgic_its_cmd_handle_mapi(kvm, its, its_cmd);
                 break;
         case GITS_CMD_MOVI:
                 ret = vgic_its_cmd_handle_movi(kvm, its, its_cmd);