On Thu, 29 Nov 2018 at 16:02, Greg Kroah-Hartman <[email protected]> wrote: > > On Thu, Nov 29, 2018 at 03:28:44PM +0100, Ard Biesheuvel wrote: > > On Thu, 29 Nov 2018 at 15:21, Greg Kroah-Hartman > > <[email protected]> wrote: > > > > > > 4.9-stable review patch. If anyone has any objections, please let me > > > know. > > > > > > ------------------ > > > > > > [ Upstream commit 33412b8673135b18ea42beb7f5117ed0091798b6 ] > > > > > > Commit: > > > > > > 3ea86495aef2 ("efi/arm: preserve early mapping of UEFI memory map > > > longer for BGRT") > > > > > > deferred the unmap of the early mapping of the UEFI memory map to > > > accommodate the ACPI BGRT code, which looks up the memory type that > > > backs the BGRT table to validate it against the requirements of the UEFI > > > spec. > > > > > > Unfortunately, this causes problems on ARM, which does not permit > > > early mappings to persist after paging_init() is called, resulting > > > in a WARN() splat. Since we don't support the BGRT table on ARM anway, > > > let's revert ARM to the old behaviour, which is to take down the > > > early mapping at the end of efi_init(). > > > > > > Signed-off-by: Ard Biesheuvel <[email protected]> > > > Cc: Linus Torvalds <[email protected]> > > > Cc: Peter Zijlstra <[email protected]> > > > Cc: Thomas Gleixner <[email protected]> > > > Cc: [email protected] > > > Fixes: 3ea86495aef2 ("efi/arm: preserve early mapping of UEFI memory ...") > > > > This commit is only in v4.19 as far as I know. Does it even apply? > > This commit is in the following releases: > 4.9.129 4.14.72 4.18.10 4.19 > > so it should apply :) >
Ah, of course. I didn't realize (or failed to remember) that it had been taken into -stable. Thanks,
