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d="scan'208";a="41892062" From: Andrew Cooper To: Xen-devel CC: Andrew Cooper , Jan Beulich Subject: [PATCH 5/7] xen/efi: Make efi_start() compile at -Og Date: Mon, 19 Apr 2021 15:01:30 +0100 Message-ID: <20210419140132.16909-6-andrew.cooper3@citrix.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20210419140132.16909-1-andrew.cooper3@citrix.com> References: <20210419140132.16909-1-andrew.cooper3@citrix.com> MIME-Version: 1.0 X-ZohoMail-DKIM: pass (identity @citrix.com) Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" When compiling at -Og: boot.c: In function 'efi_start': boot.c:1339:9: error: 'argc' may be used uninitialized in this function [= -Werror=3Dmaybe-uninitialized] 1339 | efi_arch_handle_cmdline(argc ? *argv : NULL, options, nam= e.s); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~= ~~~~ although this appears to be limited to the ARM build only. It also seems to be bogus, because it is immediately preceding by a read of argc which doesn= 't yield a diagnostic. Signed-off-by: Andrew Cooper --- CC: Jan Beulich --- xen/common/efi/boot.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/xen/common/efi/boot.c b/xen/common/efi/boot.c index 63e289ab85..f1e7a5267c 100644 --- a/xen/common/efi/boot.c +++ b/xen/common/efi/boot.c @@ -1126,7 +1126,7 @@ efi_start(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *S= ystemTable) static EFI_GUID __initdata shim_lock_guid =3D SHIM_LOCK_PROTOCOL_GUID; EFI_LOADED_IMAGE *loaded_image; EFI_STATUS status; - unsigned int i, argc; + unsigned int i, argc =3D 0; CHAR16 **argv, *file_name, *cfg_file_name =3D NULL, *options =3D NULL; UINTN gop_mode =3D ~0; EFI_SHIM_LOCK_PROTOCOL *shim_lock; --=20 2.11.0