On Tue, Mar 24, 2015 at 10:02:36PM +0800, Hanjun Guo wrote: > From: Mark Salter <msalter@xxxxxxxxxx> > > Commit 0e63ea48b4d8 (arm64/efi: add missing call to early_ioremap_reset()) > added a missing call to early_ioremap_reset(). This triggers a BUG if code > tries using early_ioremap() after the early_ioremap_reset(). This is a > problem for some ACPI code which needs short-lived temporary mappings > after paging_init() but before acpi_early_init() in start_kernel(). This > patch adds definitions for the __late_set_fixmap() and __late_clear_fixmap() > which avoids the BUG by allowing later use of early_ioremap(). > > CC: Leif Lindholm <leif.lindholm@xxxxxxxxxx> > CC: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> > Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@xxxxxxx> > Tested-by: Mark Langsdorf <mlangsdo@xxxxxxxxxx> > Tested-by: Jon Masters <jcm@xxxxxxxxxx> > Tested-by: Robert Richter <rrichter@xxxxxxxxxx> > Tested-by: Timur Tabi <timur@xxxxxxxxxxxxxx> > Acked-by: Robert Richter <rrichter@xxxxxxxxxx> > Reviewed-by: Grant Likely <grant.likely@xxxxxxxxxx> > Signed-off-by: Mark Salter <msalter@xxxxxxxxxx> > Signed-off-by: Hanjun Guo <hanjun.guo@xxxxxxxxxx> Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
