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From: "Michael Kubacki" <michael.kubacki@outlook.com>
To: devel@edk2.groups.io
Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>,
	Leif Lindholm <leif@nuviainc.com>
Subject: [PATCH v1 1/1] ArmPkg/ArmMmuLib: Explicitly cast function pointer argument
Date: Mon, 19 Oct 2020 14:35:28 -0700	[thread overview]
Message-ID: <MWHPR07MB3440B19D81517D97ADCEB352E91E0@MWHPR07MB3440.namprd07.prod.outlook.com> (raw)

From: Michael Kubacki <michael.kubacki@microsoft.com>

The function ArmReplaceLiveTranslationEntry () is passed as a VOID
pointer to WriteBackDataCacheRange (). This produces the following
warning on VS2019:

warning C4152: nonstandard extension, function/data pointer
conversion in expression

This change explicitly casts the argument to the formal parameter
type VOID*.

This can be reproduced with the following build command:
build -b DEBUG -a AARCH64 -t VS2019 -p ArmPkg/ArmPkg.dsc
-m ArmPkg/Library/ArmMmuLib/ArmMmuPeiLib.inf

Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
---
 ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuPeiLibConstructor.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuPeiLibConstructor.c b/ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuPeiLibConstructor.c
index 80317923cfa4..74807464ffd7 100644
--- a/ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuPeiLibConstructor.c
+++ b/ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuPeiLibConstructor.c
@@ -47,7 +47,7 @@ ArmMmuPeiLibConstructor (
     // The ArmReplaceLiveTranslationEntry () helper function may be invoked
     // with the MMU off so we have to ensure that it gets cleaned to the PoC
     //
-    WriteBackDataCacheRange (ArmReplaceLiveTranslationEntry,
+    WriteBackDataCacheRange ((VOID *) ArmReplaceLiveTranslationEntry,
       ArmReplaceLiveTranslationEntrySize);
   }
 
-- 
2.28.0.windows.1


                 reply	other threads:[~2020-10-19 21:35 UTC|newest]

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