[PATCH] coresight: etm4x: Remove bogous __exit annotation for some functions

Uwe Kleine-König u.kleine-koenig at pengutronix.de
Fri Sep 29 01:16:37 PDT 2023


etm4_platform_driver (which lives in ".data" contains a reference to
etm4_remove_platform_dev(). So the latter must not be marked with __exit
which results in the function being discarded for a build with
CONFIG_CORESIGHT_SOURCE_ETM4X=y which in turn makes the remove pointer
contain invalid data.

etm4x_amba_driver referencing etm4_remove_amba() has the same issue.

Drop the __exit annotations for the two affected functions and a third
one that is called by the other two.

For reasons I don't understand this isn't catched by building with
CONFIG_DEBUG_SECTION_MISMATCH=y.

Fixes: c23bc382ef0e ("coresight: etm4x: Refactor probing routine")
Fixes: 5214b563588e ("coresight: etm4x: Add support for sysreg only devices")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig at pengutronix.de>
---
 drivers/hwtracing/coresight/coresight-etm4x-core.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c
index 77b0271ce6eb..34aee59dd147 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x-core.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c
@@ -2224,7 +2224,7 @@ static void clear_etmdrvdata(void *info)
 	per_cpu(delayed_probe, cpu) = NULL;
 }
 
-static void __exit etm4_remove_dev(struct etmv4_drvdata *drvdata)
+static void etm4_remove_dev(struct etmv4_drvdata *drvdata)
 {
 	bool had_delayed_probe;
 	/*
@@ -2253,7 +2253,7 @@ static void __exit etm4_remove_dev(struct etmv4_drvdata *drvdata)
 	}
 }
 
-static void __exit etm4_remove_amba(struct amba_device *adev)
+static void etm4_remove_amba(struct amba_device *adev)
 {
 	struct etmv4_drvdata *drvdata = dev_get_drvdata(&adev->dev);
 
@@ -2261,7 +2261,7 @@ static void __exit etm4_remove_amba(struct amba_device *adev)
 		etm4_remove_dev(drvdata);
 }
 
-static int __exit etm4_remove_platform_dev(struct platform_device *pdev)
+static int etm4_remove_platform_dev(struct platform_device *pdev)
 {
 	struct etmv4_drvdata *drvdata = dev_get_drvdata(&pdev->dev);
 

base-commit: 0bb80ecc33a8fb5a682236443c1e740d5c917d1d
-- 
2.40.1




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