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 77E7E13B2B4; Tue, 27 Feb 2024 13:46:09 +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=1709041569; cv=none; b=qyCdLeGIf7e297BzHV5j50poCNhzNjLS/VBfeXLEfYDTvvCpmOX0tFTddT59wHG/hi8y5AOrWZrhyAlojFGVGgEm7QxU8Rtz1ctEjEnJhsrPXBwu3QOXCdCl0z5O3MSO9hEtzj+BiZHthY35YygjooZN2rjxEoWyDqNCX5NyVCQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709041569; c=relaxed/simple; bh=wKRF9y5npCfRuo1IdHI5zx/sJ/73I3xB/mG3+YV4fHU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=fx7Ki8Uxywhu/rdxgsOcRQ1FciAmtVY1FeqAM+N2tcIhExJjQGqfFNlsJLZ19stDKPJtF8zBa/yp6T+6S7IRcfqsL6E+xwfWdNMAvSjtscyOsYCU7NTriZwzyQ/P3luJfP8VjN2YSlXeYzNua70IaiPdPoFCaH+zZZn13cMXXVo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=nTOST/5T; 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="nTOST/5T" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F0E37C433F1; Tue, 27 Feb 2024 13:46:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1709041569; bh=wKRF9y5npCfRuo1IdHI5zx/sJ/73I3xB/mG3+YV4fHU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nTOST/5TsxzdInoH5i8+k/pV3M0D+SqpKcj80RqDijX7wZKLuRBbU2vFrzPo0nk91 7Jt3s+LVcUW3hMlmTxUgj5CshbENKJSlBR3FX1iB1GgfcCZOP5G7TVEHmLw2V3TJpM UjZZlZ088GH8+7cNTqnw3m8geZG2CWb+bt36gAXM= 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 4.19 47/52] s390: use the correct count for __iowrite64_copy() Date: Tue, 27 Feb 2024 14:26:34 +0100 Message-ID: <20240227131550.080328801@linuxfoundation.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240227131548.514622258@linuxfoundation.org> References: <20240227131548.514622258@linuxfoundation.org> User-Agent: quilt/0.67 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 4.19-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(-) --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -273,7 +273,7 @@ resource_size_t pcibios_align_resource(v /* 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); } /* Create a virtual mapping cookie for a PCI BAR */