| Message ID | 49ab91032bf9b57cd5fb6d306c38884d059dce2f.1711748999.git.u.kleine-koenig@pengutronix.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | parport: amiga: Mark driver struct with __refdata to prevent section mismatch | expand |
Hello, On Fri, Mar 29, 2024 at 10:54:39PM +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/parport/parport_amiga: section mismatch in reference: amiga_parallel_driver+0x8 (section: .data) -> amiga_parallel_remove (section: .exit.text) > > that triggers on an allmodconfig W=1 build. > > Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> I'd like to enable these warnings even for W=0 builds, so it would be great to get it into the main line soon. If you apply it, please notice that I fat-fingered the parameters to git send-email and it was sent in a thread. So (assuming you're using b4) you'd need: b4 am -P _ -v1 49ab91032bf9b57cd5fb6d306c38884d059dce2f.1711748999.git.u.kleine-koenig@pengutronix.de Best regards Uwe
Hello, On Mon, Apr 15, 2024 at 04:37:44PM +0200, Uwe Kleine-König wrote: > On Fri, Mar 29, 2024 at 10:54:39PM +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/parport/parport_amiga: section mismatch in reference: amiga_parallel_driver+0x8 (section: .data) -> amiga_parallel_remove (section: .exit.text) > > > > that triggers on an allmodconfig W=1 build. > > > > Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> > > I'd like to enable these warnings even for W=0 builds, so it would be > great to get it into the main line soon. > > If you apply it, please notice that I fat-fingered the parameters to git > send-email and it was sent in a thread. So (assuming you're using b4) > you'd need: > > b4 am -P _ -v1 49ab91032bf9b57cd5fb6d306c38884d059dce2f.1711748999.git.u.kleine-koenig@pengutronix.de Gentle ping!? It would be great to get this patch in during the upcoming merge window. Best regards Uwe
diff --git a/drivers/parport/parport_amiga.c b/drivers/parport/parport_amiga.c index e6dc857aac3f..e06c7b2aac5c 100644 --- a/drivers/parport/parport_amiga.c +++ b/drivers/parport/parport_amiga.c @@ -229,7 +229,13 @@ static void __exit amiga_parallel_remove(struct platform_device *pdev) parport_put_port(port); } -static struct platform_driver amiga_parallel_driver = { +/* + * amiga_parallel_remove() lives in .exit.text. For drivers registered via + * module_platform_driver_probe() this is ok because they cannot get unbound at + * runtime. So mark the driver struct with __refdata to prevent modpost + * triggering a section mismatch warning. + */ +static struct platform_driver amiga_parallel_driver __refdata = { .remove_new = __exit_p(amiga_parallel_remove), .driver = { .name = "amiga-parallel",
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/parport/parport_amiga: section mismatch in reference: amiga_parallel_driver+0x8 (section: .data) -> amiga_parallel_remove (section: .exit.text) that triggers on an allmodconfig W=1 build. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> --- drivers/parport/parport_amiga.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) base-commit: a6bd6c9333397f5a0e2667d4d82fef8c970108f2