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Date: Fri, 19 Jun 2015 11:39:14 +0800 From: Lv Zheng <lv.zheng@...el.com> To: "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>, Len Brown <len.brown@...el.com> Cc: Lv Zheng <lv.zheng@...el.com>, Lv Zheng <zetalog@...il.com>, <linux-kernel@...r.kernel.org>, linux-acpi@...r.kernel.org, Bob Moore <robert.moore@...el.com> Subject: [PATCH 09/32] ACPICA: Tables: Fix an issue that ACPI initialization is blocked due to no FACS. ACPICA commit ebd544ed24c5a4faba11f265e228b7a821a729f5 This patch fixes an issue that when FACS tables do not exist, ACPI initialization cannot proceed. ACPICA BZ 1122. Lv Zheng. Link: https://bugs.acpica.org/show_bug.cgi?id=1122 Link: https://github.com/acpica/acpica/commit/ebd544ed Signed-off-by: Lv Zheng <lv.zheng@...el.com> Signed-off-by: Bob Moore <robert.moore@...el.com> --- drivers/acpi/acpica/tbutils.c | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-) diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c index 6a6c5be..2bb6a11 100644 --- a/drivers/acpi/acpica/tbutils.c +++ b/drivers/acpi/acpica/tbutils.c @@ -84,18 +84,16 @@ acpi_status acpi_tb_initialize_facs(void) ACPI_CAST_INDIRECT_PTR(struct acpi_table_header, &acpi_gbl_facs64)); - if (!acpi_gbl_facs32 && !acpi_gbl_facs64) { - return (AE_NO_MEMORY); - } - if (acpi_gbl_use32_bit_facs_addresses) { - acpi_gbl_FACS = - acpi_gbl_facs32 ? acpi_gbl_facs32 : acpi_gbl_facs64; - } else { - acpi_gbl_FACS = - acpi_gbl_facs64 ? acpi_gbl_facs64 : acpi_gbl_facs32; + if (acpi_gbl_facs64 + && (!acpi_gbl_facs32 || !acpi_gbl_use32_bit_facs_addresses)) { + acpi_gbl_FACS = acpi_gbl_facs64; + } else if (acpi_gbl_facs32) { + acpi_gbl_FACS = acpi_gbl_facs32; } + /* If there is no FACS, just continue. There was already an error msg */ + return (AE_OK); } #endif /* !ACPI_REDUCED_HARDWARE */ -- 1.7.10 -- 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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