From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 CEC5F2DBF5E; Tue, 12 Aug 2025 18:18:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755022688; cv=none; b=W4mbVavTaECnSxyvsbhUMCEgzGhv4Qb53iYTKvpiveQ+4t6y6cdEns863Owv0QpqkeICfLrLYyVVx4xhaGw9RSH2HBvMMQiOKda60xesjSVSm/awC+5RvtLknqcMh91HtUQpQuc/f+hXuaMwkgwYoU/1Q6X2VQ9iFv0YBjNf+0I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755022688; c=relaxed/simple; bh=KkD0PxD+TjM0lWl4DhxK6672ArDHeG0OwjRvYtevp4U=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=nVv7f+CbUdS0ejtVBccGmGgo5DeeVSJdRYVVriV3xBN3HS/ojB1u39XExi4UL9JcPnpTl9XYOCkGSsBBKeJHbbjChM1SCXrr/gyfOP9BHTaD1bLStbQ9DNcVbAGoY3LEPLDAxs3t/IQQkWlLn86fRW0CvuTwAJWYpDn/YUkj1xM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=YPjjcy8d; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="YPjjcy8d" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4DD88C4CEF0; Tue, 12 Aug 2025 18:18:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1755022688; bh=KkD0PxD+TjM0lWl4DhxK6672ArDHeG0OwjRvYtevp4U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YPjjcy8dAYIm1qW68w6pXOmVgpmC6E2ALC+jnoIVetxZvtgkfdcUUbkfhJEUih+ke yZG4RYZAbVeZMZ9gVyD/uusbTfvJ4wA/Nnni3fY9jMd97tKPJTva+f1TNazdbPj5Bm DHQbsKYQEJjqdVQe501c0wDu8kGIJjqUdOpLGyAM= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Manivannan Sadhasivam , Frank Li , Sasha Levin Subject: [PATCH 6.12 212/369] PCI: endpoint: pci-epf-vntb: Fix the incorrect usage of __iomem attribute Date: Tue, 12 Aug 2025 19:28:29 +0200 Message-ID: <20250812173022.733244268@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250812173014.736537091@linuxfoundation.org> References: <20250812173014.736537091@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Manivannan Sadhasivam [ Upstream commit 61ae7f8694fb4b57a8c02a1a8d2b601806afc999 ] __iomem attribute is supposed to be used only with variables holding the MMIO pointer. But here, 'mw_addr' variable is just holding a 'void *' returned by pci_epf_alloc_space(). So annotating it with __iomem is clearly wrong. Hence, drop the attribute. This also fixes the below sparse warning: drivers/pci/endpoint/functions/pci-epf-vntb.c:524:17: warning: incorrect type in assignment (different address spaces) drivers/pci/endpoint/functions/pci-epf-vntb.c:524:17: expected void [noderef] __iomem *mw_addr drivers/pci/endpoint/functions/pci-epf-vntb.c:524:17: got void * drivers/pci/endpoint/functions/pci-epf-vntb.c:530:21: warning: incorrect type in assignment (different address spaces) drivers/pci/endpoint/functions/pci-epf-vntb.c:530:21: expected unsigned int [usertype] *epf_db drivers/pci/endpoint/functions/pci-epf-vntb.c:530:21: got void [noderef] __iomem *mw_addr drivers/pci/endpoint/functions/pci-epf-vntb.c:542:38: warning: incorrect type in argument 2 (different address spaces) drivers/pci/endpoint/functions/pci-epf-vntb.c:542:38: expected void *addr drivers/pci/endpoint/functions/pci-epf-vntb.c:542:38: got void [noderef] __iomem *mw_addr Fixes: e35f56bb0330 ("PCI: endpoint: Support NTB transfer between RC and EP") Signed-off-by: Manivannan Sadhasivam Reviewed-by: Frank Li Link: https://patch.msgid.link/20250709125022.22524-1-mani@kernel.org Signed-off-by: Sasha Levin --- drivers/pci/endpoint/functions/pci-epf-vntb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/endpoint/functions/pci-epf-vntb.c b/drivers/pci/endpoint/functions/pci-epf-vntb.c index 3cddfdd04029..62d09a528e68 100644 --- a/drivers/pci/endpoint/functions/pci-epf-vntb.c +++ b/drivers/pci/endpoint/functions/pci-epf-vntb.c @@ -530,7 +530,7 @@ static int epf_ntb_db_bar_init(struct epf_ntb *ntb) struct device *dev = &ntb->epf->dev; int ret; struct pci_epf_bar *epf_bar; - void __iomem *mw_addr; + void *mw_addr; enum pci_barno barno; size_t size = sizeof(u32) * ntb->db_count; -- 2.39.5