| Message ID | 57977a88a9b99b6555b227aa4994ac3df10c6490.1701957840.git.u.kleine-koenig@pengutronix.de (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | hwmon: (smsc47m1) Various improvements | expand |
On Thu, Dec 07, 2023 at 03:09:29PM +0100, Uwe Kleine-König wrote: > As described in the added code comment, a reference to .exit.text is ok > for drivers registered via module_platform_driver_probe(). Make this > explicit to prevent the following section mismatch warning > > WARNING: modpost: drivers/hwmon/smsc47m1: section mismatch in reference: smsc47m1_driver+0x8 (section: .data) -> smsc47m1_remove (section: .exit.text) > > that triggers on an allmodconfig W=1 build. > > Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Applied. Thanks, Guenter
diff --git a/drivers/hwmon/smsc47m1.c b/drivers/hwmon/smsc47m1.c index 37531b5c8254..29ea8fb4f353 100644 --- a/drivers/hwmon/smsc47m1.c +++ b/drivers/hwmon/smsc47m1.c @@ -850,7 +850,13 @@ static int __exit smsc47m1_remove(struct platform_device *pdev) return 0; } -static struct platform_driver smsc47m1_driver = { +/* + * smsc47m1_remove() lives in .exit.text. For drivers registered via + * module_platform_driver_probe() this ok because they cannot get unbound at + * runtime. The driver needs to be marked with __refdata, otherwise modpost + * triggers a section mismatch warning. + */ +static struct platform_driver smsc47m1_driver __refdata = { .driver = { .name = DRVNAME, },
As described in the added code comment, a reference to .exit.text is ok for drivers registered via module_platform_driver_probe(). Make this explicit to prevent the following section mismatch warning WARNING: modpost: drivers/hwmon/smsc47m1: section mismatch in reference: smsc47m1_driver+0x8 (section: .data) -> smsc47m1_remove (section: .exit.text) that triggers on an allmodconfig W=1 build. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> --- drivers/hwmon/smsc47m1.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)