With a sparc64 defconfig modified to set CONFIG_HOTPLUG=n
the following error happened during link of vmlinux:
local symbol 0: discarded in section `.devexit.text' from drivers/built-in.o
local symbol 1: discarded in section `.devexit.text' from drivers/built-in.o
(The error message above is from kbuild.git but it happens in mainline too)
The error happens becase there is a reference from .text/.data to
a function marked __devexit. With CONFIG_HOTPLUG=n all code marked
__devexit are discarded and the linker complains.
It was tracked down to sparcspkr.c which were missing __devexit_p()
around the function pointers.
Unfortunately modpost did not catch this since modpost do not warn about
references from .data to .devexit from variables named *_driver.
Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
---
diff --git a/drivers/input/misc/sparcspkr.c b/drivers/input/misc/sparcspkr.c
index a3637d8..fed3c37 100644
--- a/drivers/input/misc/sparcspkr.c
+++ b/drivers/input/misc/sparcspkr.c
@@ -195,7 +195,7 @@ static struct of_platform_driver ebus_beep_driver = {
.name = "beep",
.match_table = ebus_beep_match,
.probe = ebus_beep_probe,
- .remove = sparcspkr_remove,
+ .remove = __devexit_p(sparcspkr_remove),
.shutdown = sparcspkr_shutdown,
};
@@ -236,7 +236,7 @@ static struct of_platform_driver isa_beep_driver = {
.name = "beep",
.match_table = isa_beep_match,
.probe = isa_beep_probe,
- .remove = sparcspkr_remove,
+ .remove = __devexit_p(sparcspkr_remove),
.shutdown = sparcspkr_shutdown,
};
-
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