Messages in this thread | | | Date | Thu, 15 Jan 2015 12:44:34 -0600 | From | Mark Langsdorf <> | Subject | Re: [PATCH v7 01/17] arm64: allow late use of early_ioremap |
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On 01/14/2015 09:04 AM, Hanjun Guo wrote: > From: Mark Salter <msalter@redhat.com> > > 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(). > > Signed-off-by: Mark Salter <msalter@redhat.com> > CC: Leif Lindholm <leif.lindholm@linaro.org> > CC: Ard Biesheuvel <ard.biesheuvel@linaro.org> > [hj: update the change log] > Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org> > --- Tested-by: Mark Langsdorf <mlangsdo@redhat.com>
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