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Date: Wed, 27 Dec 2023 09:28:04 +0000
From: "Rin Okuyama" <rin@netbsd.org>
Subject: CVS commit: src/sys/stand/efiboot
To: source-changes@NetBSD.org
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Module Name:	src
Committed By:	rin
Date:		Wed Dec 27 09:28:04 UTC 2023

Modified Files:
	src/sys/stand/efiboot: efinet.c

Log Message:
MI efiboot: Stop using efi_bootdp after exclusive open for PXE

Once boot device is exclusively opened for Simple Network Protocol,
further access via device path (efi_bootdp) is illegal.

For some implementations, boot device path gets corrupted by
exclusive open, and subsequent access by efi_device_path_depth(),
e.g., causes infinite recursion.

Fix PXE boot for QEMU/aarch64 with EDK2 on some Linux distributions.

Thanks yamaguchi@ for comments and tests.


To generate a diff of this commit:
cvs rdiff -u -r1.6 -r1.7 src/sys/stand/efiboot/efinet.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.