From: Leif Lindholm <leif.lindholm@linaro.org>
Date: Tue, 20 Jun 2017 10:51:34 +0000 (+0100)
Subject: ArmPlatformPkg: eliminate Juno gcc build warning
X-Git-Tag: edk2-stable201903~3926
X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=commitdiff_plain;h=2f93c5077fc30e319342df750846b1607fe5571e

ArmPlatformPkg: eliminate Juno gcc build warning

When building without LTO, gcc incorrectly resolves the hazards for
'PciRegBase’ when inlining, leading to "may be used uninitialized"
warnings (and hence build failure with -Werror).
Eliminate this warning by explicitly initializing the variable to 0.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Ryan Harkin <ryan.harkin@linaro.org>
---

diff --git a/ArmPlatformPkg/ArmJunoPkg/Drivers/ArmJunoDxe/ArmJunoDxe.c b/ArmPlatformPkg/ArmJunoPkg/Drivers/ArmJunoDxe/ArmJunoDxe.c
index da93eb5829..18491c7378 100644
--- a/ArmPlatformPkg/ArmJunoPkg/Drivers/ArmJunoDxe/ArmJunoDxe.c
+++ b/ArmPlatformPkg/ArmJunoPkg/Drivers/ArmJunoDxe/ArmJunoDxe.c
@@ -343,6 +343,7 @@ ArmJunoSetNicMacAddress ()
     return Status;
   }
 
+  PciRegBase = 0;
   Status = InitPciDev (PciIo, &PciRegBase, &OldPciAttr);
   if (EFI_ERROR (Status)) {
     return Status;