[edk2-devel] [PATCH edk2-platforms v2 4/8] Platform/RaspberryPi/VarBlockServiceDxe: Refactor DumpVars event handler

[Ard Biesheuvel via groups.io]

From: Ard Biesheuvel <a...@kernel.org>

The DumpVars() routine is called directly and via an event notification
callback, and the latter therefore defines the function's prototype,
even though the arguments are unused.

We will introduce another callback into this logic, but via a reset
notifier, which has yet another prototype. So to keep things tidy, drop
the formal parameters from DumpVars() and invoke it via a helper
function that discards the arguments when called as a event notification
callback. We will do the same for the reset notification once that
functionality gets added.

Signed-off-by: Ard Biesheuvel <a...@kernel.org>
Reviewed-by: Leif Lindholm <quic_llind...@quicinc.com>
---
 Platform/RaspberryPi/Drivers/VarBlockServiceDxe/VarBlockServiceDxe.c | 20 
++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git 
a/Platform/RaspberryPi/Drivers/VarBlockServiceDxe/VarBlockServiceDxe.c 
b/Platform/RaspberryPi/Drivers/VarBlockServiceDxe/VarBlockServiceDxe.c
index d7be37f67af3..006d4ded15e9 100644
--- a/Platform/RaspberryPi/Drivers/VarBlockServiceDxe/VarBlockServiceDxe.c
+++ b/Platform/RaspberryPi/Drivers/VarBlockServiceDxe/VarBlockServiceDxe.c
@@ -161,10 +161,8 @@ DoDump (
 
 STATIC
 VOID
-EFIAPI
 DumpVars (
-  IN EFI_EVENT Event,
-  IN VOID *Context
+  VOID
   )
 {
   EFI_STATUS Status;
@@ -202,6 +200,16 @@ DumpVars (
   mFvInstance->Dirty = FALSE;
 }
 
+STATIC
+VOID
+EFIAPI
+DumpVarsOnEvent (
+  IN EFI_EVENT Event,
+  IN VOID *Context
+  )
+{
+  DumpVars ();
+}
 
 VOID
 ReadyToBootHandler (
@@ -216,7 +224,7 @@ ReadyToBootHandler (
   Status = gBS->CreateEvent (
                   EVT_NOTIFY_SIGNAL,
                   TPL_CALLBACK,
-                  DumpVars,
+                  DumpVarsOnEvent,
                   NULL,
                   &ImageInstallEvent
                 );
@@ -229,7 +237,7 @@ ReadyToBootHandler (
                 );
   ASSERT_EFI_ERROR (Status);
 
-  DumpVars (NULL, NULL);
+  DumpVars ();
   Status = gBS->CloseEvent (Event);
   ASSERT_EFI_ERROR (Status);
 }
@@ -247,7 +255,7 @@ InstallDumpVarEventHandlers (
   Status = gBS->CreateEventEx (
                   EVT_NOTIFY_SIGNAL,
                   TPL_CALLBACK,
-                  DumpVars,
+                  DumpVarsOnEvent,
                   NULL,
                   &gRaspberryPiEventResetGuid,
                   &ResetEvent
-- 
2.46.0.rc1.232.g9752f9e123-goog



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