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 C105B1468E5; Tue, 27 Feb 2024 14:30:33 +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=1709044233; cv=none; b=asNDs2GYyN0viPoYWVbIhTPJrRJ4YyuKP0jZDjVDxLvJrR2Js5/M1c1nSnCKcY9rHdna4dyZNT4Hawf3LamkNhPFF+ki6cnX224O5jOwCFluG5S7QOg426H4mCEegWAY2Zz5dKG1CdiNsciz21YLCbBirHcfoCrYK9PsLxQdUK0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709044233; c=relaxed/simple; bh=ZT/LgjEwOjPG0bDH3ytMJd6W2wQdDxajwqJOARZ5/Z8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=iJVdmR8l3a+hpgycWG2o0XEyEmlbPa6Zuv8dJfQAJ7D3C2oU/dN9pZ+SFBWx9QYY2rLUtd7x4jySpXHFDDuLQ1emMTJDQNs6mtMcMFJrEicF3B2jSSpY9JNV3H2FfPVWJvFleuaSwYsv5byY1PKqntU5pF1P/Aws6Shf8Qu0XT8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=tj8yprrE; 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="tj8yprrE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 50851C433C7; Tue, 27 Feb 2024 14:30:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1709044233; bh=ZT/LgjEwOjPG0bDH3ytMJd6W2wQdDxajwqJOARZ5/Z8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tj8yprrEI2DI/0z/avfs75qkVJ+anGDWZ5V7bHA8YFXvK0h367zOPcDbES3dFTMhe gp0ud0TTrDznEInUdN+B/VXrHody6/kQB+MS2W89xRFjhd4JvI7XJ8ufFpF5OJSiCe gbWBH7Su5Q8zQlVOw18MojUSjz/ZEJ6Xp/WWwoT4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Niklas Schnelle , Jason Gunthorpe , Heiko Carstens , Sasha Levin Subject: [PATCH 5.10 111/122] s390: use the correct count for __iowrite64_copy() Date: Tue, 27 Feb 2024 14:27:52 +0100 Message-ID: <20240227131602.336458681@linuxfoundation.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240227131558.694096204@linuxfoundation.org> References: <20240227131558.694096204@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jason Gunthorpe [ Upstream commit 723a2cc8d69d4342b47dfddbfe6c19f1b135f09b ] The signature for __iowrite64_copy() requires the number of 64 bit quantities, not bytes. Multiple by 8 to get to a byte length before invoking zpci_memcpy_toio() Fixes: 87bc359b9822 ("s390/pci: speed up __iowrite64_copy by using pci store block insn") Acked-by: Niklas Schnelle Signed-off-by: Jason Gunthorpe Link: https://lore.kernel.org/r/0-v1-9223d11a7662+1d7785-s390_iowrite64_jgg@nvidia.com Signed-off-by: Heiko Carstens Signed-off-by: Sasha Levin --- arch/s390/pci/pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c index 74799439b2598..beecc36c30276 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -225,7 +225,7 @@ resource_size_t pcibios_align_resource(void *data, const struct resource *res, /* combine single writes by using store-block insn */ void __iowrite64_copy(void __iomem *to, const void *from, size_t count) { - zpci_memcpy_toio(to, from, count); + zpci_memcpy_toio(to, from, count * 8); } static void __iomem *__ioremap(phys_addr_t addr, size_t size, pgprot_t prot) -- 2.43.0