linux-kernel - [PATCH] Fix section mismatch error for acpi_early_processor_set

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Message-Id: <4b38fb5b18912746ff@agluck-desktop.sc.intel.com>
Date:	Mon, 28 Dec 2009 10:39:23 -0800
From:	"Luck, Tony" <tony.luck@...el.com>
To:	"Len Brown" <len.brown@...el.com>
Cc:	linux-kernel@...r.kernel.org, "Alex Chiang" <achiang@...com>
Subject: [PATCH] Fix section mismatch error for acpi_early_processor_set_pdc()

Alex Chiang introduced acpi_early_processor_set_pdc() in commit:
 ACPI: processor: call _PDC early
 78f1699659963fff97975df44db6d5dbe7218e55

But this results in a section mismatch:

WARNING: drivers/acpi/acpi.o(.text+0xa9c1): Section mismatch in reference from the
function acpi_early_processor_set_pdc() to the variable .cpuinit.data:processor_idle_dmi_table
The function acpi_early_processor_set_pdc() references
the variable __cpuinitdata processor_idle_dmi_table.
This is often because acpi_early_processor_set_pdc lacks a __cpuinitdata
annotation or the annotation of processor_idle_dmi_table is wrong.

The only caller of acpi_early_processor_set_pdc() is acpi_bus_init() which
is an "__init" function. So the correct fix here is to mark
acpi_early_processor_set_pdc() "__init" too.

Signed-off-by: Tony Luck <tony.luck@...el.com>

---

diff --git a/drivers/acpi/processor_pdc.c b/drivers/acpi/processor_pdc.c
index 30e4dc0..7d4ee39 100644
--- a/drivers/acpi/processor_pdc.c
+++ b/drivers/acpi/processor_pdc.c
@@ -151,7 +151,7 @@ early_init_pdc(acpi_handle handle, u32 lvl, void *context, void **rv)
 	return AE_OK;
 }

-void acpi_early_processor_set_pdc(void)
+void __init acpi_early_processor_set_pdc(void)
 {
 	/*
 	 * Check whether the system is DMI table. If yes, OSPM
--
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