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Message-Id: <1357219085-4312-3-git-send-email-matt@console-pimps.org> Date: Thu, 3 Jan 2013 13:18:05 +0000 From: Matt Fleming <matt@...sole-pimps.org> To: Steve Langasek <steve.langasek@...onical.com>, Matthew Garrett <mjg59@...f.ucam.org> Cc: linux-efi@...r.kernel.org, linux-kernel@...r.kernel.org, "H. Peter Anvin" <hpa@...or.com>, Olof Johansson <olof@...om.net>, Tony Luck <tony.luck@...el.com>, Matt Fleming <matt.fleming@...el.com>, Corentin Chary <corentincj@...aif.net>, platform-driver-x86@...r.kernel.org Subject: [RFC PATCH 2/2] samsung-laptop: Disable on EFI hardware From: Matt Fleming <matt.fleming@...el.com> There have been reports of this driver causing Machine Check Exceptions on recent EFI-enabled Samsung laptops, https://bugzilla.kernel.org/show_bug.cgi?id=47121 So disable it if booting from EFI since this driver relies on grovelling around in the BIOS memory map which isn't going to work. Cc: Corentin Chary <corentincj@...aif.net> Cc: Matthew Garrett <mjg59@...f.ucam.org> Cc: Steve Langasek <steve.langasek@...onical.com> Cc: platform-driver-x86@...r.kernel.org Signed-off-by: Matt Fleming <matt.fleming@...el.com> --- drivers/platform/x86/samsung-laptop.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c index dd90d15..a94c0ee 100644 --- a/drivers/platform/x86/samsung-laptop.c +++ b/drivers/platform/x86/samsung-laptop.c @@ -1534,6 +1534,9 @@ static int __init samsung_init(void) struct samsung_laptop *samsung; int ret; + if (efi_enabled(EFI_BOOT)) + return -ENODEV; + quirks = &samsung_unknown; if (!force && !dmi_check_system(samsung_dmi_table)) return -ENODEV; -- 1.7.11.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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