package/qemu: fix build with kernel < 5.0
Fixes: - http://autobuild.buildroot.org/results/e4ef13e8ca4ac634650ed80a72a0e1da59520628 Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com> Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
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From ecd615dfe328e3ab551cea3ba243d908936ed382 Mon Sep 17 00:00:00 2001
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From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
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Date: Sun, 13 Dec 2020 21:27:31 +0100
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Subject: [PATCH] hw/usb/host-libusb.c: fix build with kernel < 5.0
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USBDEVFS_GET_SPEED is used since version 5.2.0 and
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https://gitlab.com/qemu-project/qemu/-/commit/202d69a715a4b1824dcd7ec1683d027ed2bae6d3
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resulting in the following build failure with kernel < 5.0:
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../hw/usb/host-libusb.c: In function 'usb_host_open':
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../hw/usb/host-libusb.c:953:32: error: 'USBDEVFS_GET_SPEED' undeclared (first use in this function); did you mean 'USBDEVFS_GETDRIVER'?
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int rc = ioctl(hostfd, USBDEVFS_GET_SPEED, NULL);
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^~~~~~~~~~~~~~~~~~
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USBDEVFS_GETDRIVER
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A tentative was made to fix this build failure with
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https://gitlab.com/qemu-project/qemu/-/commit/4969e697c15ac536d5c0700381d5d026ef7f0588
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However, the assumtion that distros with old kernels also have old
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libusb is just wrong so also add a check for defined(USBDEVFS_GET_SPEED)
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Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
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[Upstream status: sent to qemu-devel@nongnu.org]
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---
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hw/usb/host-libusb.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/hw/usb/host-libusb.c b/hw/usb/host-libusb.c
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index b950501d10..0343300d3e 100644
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--- a/hw/usb/host-libusb.c
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+++ b/hw/usb/host-libusb.c
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@@ -941,7 +941,7 @@ static int usb_host_open(USBHostDevice *s, libusb_device *dev, int hostfd)
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usb_host_ep_update(s);
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libusb_speed = libusb_get_device_speed(dev);
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-#if LIBUSB_API_VERSION >= 0x01000107 && defined(CONFIG_LINUX)
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+#if LIBUSB_API_VERSION >= 0x01000107 && defined(CONFIG_LINUX) && defined(USBDEVFS_GET_SPEED)
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if (hostfd && libusb_speed == 0) {
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/*
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* Workaround libusb bug: libusb_get_device_speed() does not
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--
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2.29.2
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