- Revert upstream change to fix Logitech MX mice (#2019970)
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Adam Williamson
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188
0001-Revert-attrib-Make-use-of-bt_att_resend.patch
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188
0001-Revert-attrib-Make-use-of-bt_att_resend.patch
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From 697866e210e4e2dce14c95f7a7243e9b9128d01f Mon Sep 17 00:00:00 2001
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From: Adam Williamson <awilliam@redhat.com>
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Date: Sun, 7 Nov 2021 15:10:53 -0800
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Subject: [PATCH] Revert "attrib: Make use of bt_att_resend"
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This reverts commit ac2c2e10b3adb432a572b618c6f53cabb6b3c80b. It
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causes problems with Logitech MX wireless input devices (see
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https://github.com/bluez/bluez/issues/220 and
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https://bugzilla.redhat.com/show_bug.cgi?id=2019970 ).
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---
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attrib/gattrib.c | 95 +++++++++++++++++++++++++++++++++++++-----------
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1 file changed, 73 insertions(+), 22 deletions(-)
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diff --git a/attrib/gattrib.c b/attrib/gattrib.c
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index 270a37ebe..bc7d4f22c 100644
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--- a/attrib/gattrib.c
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+++ b/attrib/gattrib.c
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@@ -41,8 +41,13 @@ struct _GAttrib {
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struct queue *track_ids;
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};
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+struct id_pair {
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+ unsigned int org_id;
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+ unsigned int pend_id;
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+};
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+
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struct attrib_callbacks {
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- unsigned int id;
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+ struct id_pair *id;
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GAttribResultFunc result_func;
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GAttribNotifyFunc notify_func;
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GDestroyNotify destroy_func;
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@@ -51,6 +56,32 @@ struct attrib_callbacks {
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uint16_t notify_handle;
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};
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+static bool find_with_org_id(const void *data, const void *user_data)
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+{
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+ const struct id_pair *p = data;
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+ unsigned int orig_id = PTR_TO_UINT(user_data);
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+
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+ return (p->org_id == orig_id);
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+}
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+
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+static struct id_pair *store_id(GAttrib *attrib, unsigned int org_id,
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+ unsigned int pend_id)
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+{
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+ struct id_pair *t;
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+
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+ t = new0(struct id_pair, 1);
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+ if (!t)
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+ return NULL;
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+
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+ t->org_id = org_id;
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+ t->pend_id = pend_id;
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+
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+ if (queue_push_tail(attrib->track_ids, t))
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+ return t;
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+
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+ return NULL;
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+}
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+
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GAttrib *g_attrib_new(GIOChannel *io, guint16 mtu, bool ext_signed)
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{
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gint fd;
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@@ -119,6 +150,9 @@ static void attrib_callbacks_destroy(void *data)
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if (cb->destroy_func)
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cb->destroy_func(cb->user_data);
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+ if (queue_remove(cb->parent->track_ids, cb->id))
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+ free(cb->id);
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+
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free(data);
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}
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@@ -148,7 +182,7 @@ void g_attrib_unref(GAttrib *attrib)
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bt_att_unref(attrib->att);
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queue_destroy(attrib->callbacks, attrib_callbacks_destroy);
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- queue_destroy(attrib->track_ids, NULL);
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+ queue_destroy(attrib->track_ids, free);
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free(attrib->buf);
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@@ -261,6 +295,7 @@ guint g_attrib_send(GAttrib *attrib, guint id, const guint8 *pdu, guint16 len,
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struct attrib_callbacks *cb = NULL;
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bt_att_response_func_t response_cb = NULL;
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bt_att_destroy_func_t destroy_cb = NULL;
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+ unsigned int pend_id;
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if (!attrib)
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return 0;
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@@ -282,47 +317,62 @@ guint g_attrib_send(GAttrib *attrib, guint id, const guint8 *pdu, guint16 len,
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}
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- if (id == 0)
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- id = bt_att_send(attrib->att, pdu[0], (void *) pdu + 1,
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- len - 1, response_cb, cb, destroy_cb);
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- else {
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- int err;
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-
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- err = bt_att_resend(attrib->att, id, pdu[0], (void *) pdu + 1,
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- len - 1, response_cb, cb, destroy_cb);
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- if (err)
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- return 0;
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- }
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+ pend_id = bt_att_send(attrib->att, pdu[0], (void *) pdu + 1, len - 1,
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+ response_cb, cb, destroy_cb);
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- if (!id)
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- return id;
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+ /*
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+ * We store here pair as it is easier to handle it in response and in
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+ * case where user request us to use specific id request - see below.
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+ */
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+ if (id == 0)
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+ id = pend_id;
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/*
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* If user what us to use given id, lets keep track on that so we give
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* user a possibility to cancel ongoing request.
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*/
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- if (cb) {
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- cb->id = id;
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- queue_push_tail(attrib->track_ids, UINT_TO_PTR(id));
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- }
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+ if (cb)
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+ cb->id = store_id(attrib, id, pend_id);
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return id;
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}
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gboolean g_attrib_cancel(GAttrib *attrib, guint id)
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{
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+ struct id_pair *p;
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+
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if (!attrib)
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return FALSE;
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+ /*
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+ * If request belongs to gattrib and is not yet done it has to be on
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+ * the tracking id queue
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+ *
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+ * FIXME: It can happen that on the queue there is id_pair with
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+ * given id which was provided by the user. In the same time it might
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+ * happen that other attrib user got dynamic allocated req_id with same
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+ * value as the one provided by the other user.
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+ * In such case there are two clients having same request id and in
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+ * this point of time we don't know which one calls cancel. For
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+ * now we cancel request in which id was specified by the user.
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+ */
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+ p = queue_remove_if(attrib->track_ids, find_with_org_id,
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+ UINT_TO_PTR(id));
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+ if (!p)
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+ return FALSE;
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+
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+ id = p->pend_id;
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+ free(p);
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+
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return bt_att_cancel(attrib->att, id);
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}
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static void cancel_request(void *data, void *user_data)
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{
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- unsigned int id = PTR_TO_UINT(data);
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+ struct id_pair *p = data;
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GAttrib *attrib = user_data;
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- bt_att_cancel(attrib->att, id);
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+ bt_att_cancel(attrib->att, p->pend_id);
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}
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gboolean g_attrib_cancel_all(GAttrib *attrib)
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@@ -330,8 +380,9 @@ gboolean g_attrib_cancel_all(GAttrib *attrib)
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if (!attrib)
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return FALSE;
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+ /* Cancel only request which belongs to gattrib */
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queue_foreach(attrib->track_ids, cancel_request, attrib);
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- queue_remove_all(attrib->track_ids, NULL, NULL, NULL);
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+ queue_remove_all(attrib->track_ids, NULL, NULL, free);
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return TRUE;
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}
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--
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2.33.1
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@ -6,7 +6,7 @@
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Name: bluez
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Version: 5.62
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Release: 1%{?dist}
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Release: 2%{?dist}
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Summary: Bluetooth utilities
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License: GPLv2+
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URL: http://www.bluez.org/
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@ -23,6 +23,10 @@ Patch4: 0003-systemd-Add-more-filesystem-lockdown.patch
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Patch5: 0004-systemd-More-lockdown.patch
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# Fix FTBFS with newer glib versions
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Patch6: 0002-Use-g_memdup2-everywhere.patch
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# Fix initialization problems with Logitech MX Master mice
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# https://bugzilla.redhat.com/show_bug.cgi?id=2019970
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# https://github.com/bluez/bluez/issues/220
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Patch7: 0001-Revert-attrib-Make-use-of-bt_att_resend.patch
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BuildRequires: dbus-devel >= 1.6
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BuildRequires: glib2-devel
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@ -320,6 +324,9 @@ install emulator/btvirt ${RPM_BUILD_ROOT}/%{_libexecdir}/bluetooth/
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%{_userunitdir}/obex.service
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%changelog
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* Sun Nov 07 2021 Adam Williamson <awilliam@redhat.com> - 5.62-2
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- Revert an upstream change to fix problems with Logitech MX mice (#2019970)
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* Wed Oct 13 2021 Peter Robinson <pbrobinson@fedoraproject.org> - 5.62-1
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- Update to 5.62
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