From patchwork Fri Mar 29 21:54:39 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= X-Patchwork-Id: 13611126 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [185.203.201.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8885E13DB9C for ; Fri, 29 Mar 2024 21:54:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.203.201.7 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711749295; cv=none; b=pfgAQ7VMly0yT5j10YFvorod0JMsJscK8yu4bZr189B/xWR2bWdST5q8g4v9TzkmSvzg6S68zWSiwse/Tja/u1NP3AOBi9Js5R0pl5fqSQzH4nW0zhb90j8wMp53AyZ6hpF2EAwIVnzskzf9CH3HqrCKrltUEw3agdaFNbf9wvw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711749295; c=relaxed/simple; bh=FFP5qSLt2gi6OXPIlQSb+oCOhup6SxDCMfl5WUh43iA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=nd+A2/FpEfx2hrOL7Y/yatCUB5f/KzVfTG/zBMr7yMTriUoA60YQTmh2zG8PpWDHFB0RvIj2vd2Z5jqSPXyANvtTkhoUtC86W4ChGLRd3ZQumZ71IDugV3EH98b/2MhOyAF8L1z066QmPCPbjyRvU9k2p9ixd+YDkYeDLbyEeBA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de; spf=pass smtp.mailfrom=pengutronix.de; arc=none smtp.client-ip=185.203.201.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pengutronix.de Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rqKBX-0004gJ-DJ; Fri, 29 Mar 2024 22:54:51 +0100 Received: from [2a0a:edc0:0:900:1d::77] (helo=ptz.office.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1rqKBX-009GM9-0n; Fri, 29 Mar 2024 22:54:51 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.96) (envelope-from ) id 1rqKBW-00DTju-32; Fri, 29 Mar 2024 22:54:50 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Sudip Mukherjee Cc: linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH] parport: amiga: Mark driver struct with __refdata to prevent section mismatch Date: Fri, 29 Mar 2024 22:54:39 +0100 Message-ID: <49ab91032bf9b57cd5fb6d306c38884d059dce2f.1711748999.git.u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.43.0 In-Reply-To: <2e3783106bf6bd9a7bdeb12b706378fb16316471.1711748999.git.u.kleine-koenig@pengutronix.de> References: <2e3783106bf6bd9a7bdeb12b706378fb16316471.1711748999.git.u.kleine-koenig@pengutronix.de> Precedence: bulk X-Mailing-List: linux-kbuild@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1501; i=u.kleine-koenig@pengutronix.de; h=from:subject:message-id; bh=FFP5qSLt2gi6OXPIlQSb+oCOhup6SxDCMfl5WUh43iA=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBmBziinZBZuqhic9jwgdlI0skMFr+/xqo+9bVkF +wj9XnM69uJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZgc4ogAKCRCPgPtYfRL+ ThbOB/4mIS6/DERN5/ySMmxe23YeE2PvWHuIDtKHC3gP4q78njdUTPWp9lr5D8KRrmbXfIf0l9E XadY6k2bIpZ2WiROWj8rjVVuAiA8RGKWuXfbbWD0xlzT5w3yPSkLl3VHT45uuoCY/OWOOiRbKz5 2rduIoLKfp9JKQsgH7Ph3kolEbvkKlUIwENCx1LaOjOYTVu3zKkjk2Zfvy6PCi7/sYHhD7K9AeO x4598/StdH+df5qAOEEFE1QEIO8YNTZe1J6SVsuUZ1enXGbAZKH10DrDmJyQzDZw3a6wNVVZvSR HCLCUSLYRNidLhdlkuw14kZKeY3rd4+rAFIMkgb1QdS86IZv X-Developer-Key: i=u.kleine-koenig@pengutronix.de; a=openpgp; fpr=0D2511F322BFAB1C1580266BE2DCDD9132669BD6 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: ukl@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kbuild@vger.kernel.org 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 --- drivers/parport/parport_amiga.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) base-commit: a6bd6c9333397f5a0e2667d4d82fef8c970108f2 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",