1 files changed, 126 insertions, 0 deletions
diff --git a/meta-oe/dynamic-layers/selinux/recipes-devtool/android-tools/android-tools/0003-Update-usage-of-usbdevfs_urb-to-match-new-kernel-UAP.patch b/meta-oe/dynamic-layers/selinux/recipes-devtool/android-tools/android-tools/0003-Update-usage-of-usbdevfs_urb-to-match-new-kernel-UAP.patch
new file mode 100644
index 0000000000..7ea040c68a
--- /dev/null
+++ b/meta-oe/dynamic-layers/selinux/recipes-devtool/android-tools/android-tools/0003-Update-usage-of-usbdevfs_urb-to-match-new-kernel-UAP.patch
@@ -0,0 +1,126 @@
+From 02b6b6977d80af4b9b806054fadb5a06cedf011d Mon Sep 17 00:00:00 2001
+From: Etienne Cordonnier <ecordonnier@snap.com>
+Date: Tue, 14 Mar 2023 11:33:50 +0100
+Subject: [PATCH] Update usage of usbdevfs_urb to match new kernel UAPI
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Linux kernel API has been changed by commit 94dfc73e7cf4 ("treewide: uapi: Replace zero-length arrays with flexible-array members")
+where zero-length array iso_frame_desc in struct usbdevfs_urb was replaced with a proper flexible-array member.
+
+Current USB API usage causes a compilation error at Linux 6.0:
+
+In file included from /home/mae/.cache/kiss/proc/121205/build/android-tools/vendor/adb/client/usb_linux.cpp:28:
+/usr/include/linux/usbdevice_fs.h:134:41: error: flexible array member ‘usbdevfs_urb::iso_frame_desc’ not at end of ‘struct usb_handle’
+  134 |         struct usbdevfs_iso_packet_desc iso_frame_desc[];
+      |                                         ^~~~~~~~~~~~~~
+/home/mae/.cache/kiss/proc/121205/build/android-tools/vendor/adb/client/usb_linux.cpp:76:18: note: next member ‘usbdevfs_urb usb_handle::urb_out’ declared here
+   76 |     usbdevfs_urb urb_out;
+      |                  ^~~~~~~
+/home/mae/.cache/kiss/proc/121205/build/android-tools/vendor/adb/client/usb_linux.cpp:61:8: note: in the definition of ‘struct usb_handle’
+   61 | struct usb_handle {
+      |        ^~~~~~~~~~
+
+Fix it by using pointers to a struct with flexible-array members.
+Current fix works both with the old and the new API.
+
+See https://github.com/nmeum/android-tools/issues/74 for more context.
+
+Tested: built on Linux against kernel 5.19 and 6.0; 'adb shell' over USB
+cable
+Acked-by: Gustavo A. R. Silva gustavoars@kernel.org
+Change-Id: I7f0f7b35d9a3ab980d3520b541b60c7857a6b101
+Signed-off-by: Anatol Pomozov <anatol.pomozov@gmail.com>
+
+[Backported on version 10]
+Signed-off-by: Etienne Cordonnier <ecordonnier@snap.com>
+
+---
+ system/core/adb/client/usb_linux.cpp | 24 ++++++++++++++----------
+ 1 file changed, 14 insertions(+), 10 deletions(-)
+
+diff --git a/system/core/adb/client/usb_linux.cpp b/system/core/adb/client/usb_linux.cpp
+index 343e7b59..6a4479f3 100644
+--- a/system/core/adb/client/usb_linux.cpp
++++ b/system/core/adb/client/usb_linux.cpp
+@@ -71,8 +71,8 @@ struct usb_handle : public ::usb_handle {
+     unsigned zero_mask;
+     unsigned writeable = 1;
+ 
+-    usbdevfs_urb urb_in;
+-    usbdevfs_urb urb_out;
++    usbdevfs_urb *urb_in;
++    usbdevfs_urb *urb_out;
+ 
+     bool urb_in_busy = false;
+     bool urb_out_busy = false;
+@@ -305,7 +305,7 @@ static int usb_bulk_write(usb_handle* h, const void* data, int len) {
+     std::unique_lock<std::mutex> lock(h->mutex);
+     D("++ usb_bulk_write ++");
+ 
+-    usbdevfs_urb* urb = &h->urb_out;
++    usbdevfs_urb* urb = h->urb_out;
+     memset(urb, 0, sizeof(*urb));
+     urb->type = USBDEVFS_URB_TYPE_BULK;
+     urb->endpoint = h->ep_out;
+@@ -344,7 +344,7 @@ static int usb_bulk_read(usb_handle* h, void* data, int len) {
+     std::unique_lock<std::mutex> lock(h->mutex);
+     D("++ usb_bulk_read ++");
+ 
+-    usbdevfs_urb* urb = &h->urb_in;
++    usbdevfs_urb* urb = h->urb_in;
+     memset(urb, 0, sizeof(*urb));
+     urb->type = USBDEVFS_URB_TYPE_BULK;
+     urb->endpoint = h->ep_in;
+@@ -389,7 +389,7 @@ static int usb_bulk_read(usb_handle* h, void* data, int len) {
+         }
+         D("[ urb @%p status = %d, actual = %d ]", out, out->status, out->actual_length);
+ 
+-        if (out == &h->urb_in) {
++        if (out == h->urb_in) {
+             D("[ reap urb - IN complete ]");
+             h->urb_in_busy = false;
+             if (urb->status != 0) {
+@@ -398,7 +398,7 @@ static int usb_bulk_read(usb_handle* h, void* data, int len) {
+             }
+             return urb->actual_length;
+         }
+-        if (out == &h->urb_out) {
++        if (out == h->urb_out) {
+             D("[ reap urb - OUT compelete ]");
+             h->urb_out_busy = false;
+             h->cv.notify_all();
+@@ -502,10 +502,10 @@ void usb_kick(usb_handle* h) {
+             ** but this ensures that a reader blocked on REAPURB
+             ** will get unblocked
+             */
+-            ioctl(h->fd, USBDEVFS_DISCARDURB, &h->urb_in);
+-            ioctl(h->fd, USBDEVFS_DISCARDURB, &h->urb_out);
+-            h->urb_in.status = -ENODEV;
+-            h->urb_out.status = -ENODEV;
++            ioctl(h->fd, USBDEVFS_DISCARDURB, h->urb_in);
++            ioctl(h->fd, USBDEVFS_DISCARDURB, h->urb_out);
++            h->urb_in->status = -ENODEV;
++            h->urb_out->status = -ENODEV;
+             h->urb_in_busy = false;
+             h->urb_out_busy = false;
+             h->cv.notify_all();
+@@ -521,6 +521,8 @@ int usb_close(usb_handle* h) {
+ 
+     D("-- usb close %p (fd = %d) --", h, h->fd);
+ 
++    delete h->urb_in;
++    delete h->urb_out;
+     delete h;
+ 
+     return 0;
+@@ -556,6 +558,8 @@ static void register_device(const char* dev_name, const char* dev_path, unsigned
+     usb->ep_out = ep_out;
+     usb->zero_mask = zero_mask;
+     usb->max_packet_size = max_packet_size;
++    usb->urb_in = new usbdevfs_urb;
++    usb->urb_out = new usbdevfs_urb;
+ 
+     // Initialize mark so we don't get garbage collected after the device scan.
+     usb->mark = true;