linux-kernel - [BUG] dmi_scan_machine uses uninitialized address on x86 / EFI

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Message-ID: <342F93DAA55A4EE888FBD256CE6044F4@thje6600v>
Date:	Mon, 23 Feb 2009 16:40:29 +0100
From:	"Thomas Jourdan" <tjourdan@...erfaceconcept.com>
To:	<linux-kernel@...r.kernel.org>
Subject: [BUG] dmi_scan_machine uses uninitialized address on x86 / EFI

Hi

On x86/EFI platforms, if efi_enabled is true, the dmi_scan_machine function
fails, even if valid DMI table is present. In the setup_arch function,
efi_init is called after dmi_scan_machine. But this is efi_init which will
initialize the smbios address, needed by dmi_scan_machine.

This leads to dmi_scan_machine ioremapping physical address 0, instead of
the address provided by the EFI system table. The following patch fixes the
problem.

Regards,
Thomas

Download attachment "dmi_scan.patch" of type "application/octet-stream" (959 bytes)