linux-kernel - [GIT pull] EFI fix for 5.6-rc1

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Message-ID: <158125695731.26104.949647922067525745.tglx@nanos.tec.linutronix.de>
Date:   Sun, 09 Feb 2020 14:02:37 -0000
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     linux-kernel@...r.kernel.org, x86@...nel.org
Subject: [GIT pull] EFI fix for 5.6-rc1

Linus,

please pull the latest efi/urgent branch from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git efi-urgent-2020-02-09

up to:  59365cadfbcd: efi/x86: Fix boot regression on systems with invalid memmap entries


A single fix for a EFI boot regression on X86 which was caused by the
recent rework of the EFI memory map parsing. On systems with invalid memmap
entries the cleanup function uses an value which cannot be relied on in
this stage. Use the actual EFI memmap entry instead.


Thanks,

	tglx

------------------>
Ard Biesheuvel (1):
      efi/x86: Fix boot regression on systems with invalid memmap entries


 arch/x86/platform/efi/efi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 59f7f6d60cf6..ae923ee8e2b4 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -308,7 +308,7 @@ static void __init efi_clean_memmap(void)
 			.phys_map = efi.memmap.phys_map,
 			.desc_version = efi.memmap.desc_version,
 			.desc_size = efi.memmap.desc_size,
-			.size = data.desc_size * (efi.memmap.nr_map - n_removal),
+			.size = efi.memmap.desc_size * (efi.memmap.nr_map - n_removal),
 			.flags = 0,
 		};