linux-kernel - linux-next: build failure after merge of the bluetooth tree

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Message-ID: <20211206113745.59692762@canb.auug.org.au>
Date:   Mon, 6 Dec 2021 11:37:45 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Marcel Holtmann <marcel@...tmann.org>,
        Johan Hedberg <johan.hedberg@...il.com>
Cc:     Luiz Augusto von Dentz <luiz.von.dentz@...el.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: linux-next: build failure after merge of the bluetooth tree

Hi all,

After merging the bluetooth tree, today's linux-next build (arm
multi_v7_defconfig) failed like this:

net/bluetooth/hci_event.c:6776:24: error: initialization of 'void (*)(struct hci_dev *, void *, struct sk_buff *)' from incompatible pointer type 'void (*)(struct hci_dev *, struct sk_buff *)' [-Werror=incompatible-pointer-types]
 6776 |  HCI_EV(HCI_EV_VENDOR, msft_vendor_evt, 0),
      |                        ^~~~~~~~~~~~~~~
net/bluetooth/hci_event.c:6599:10: note: in definition of macro 'HCI_EV_VL'
 6599 |  .func = _func, \
      |          ^~~~~
net/bluetooth/hci_event.c:6776:2: note: in expansion of macro 'HCI_EV'
 6776 |  HCI_EV(HCI_EV_VENDOR, msft_vendor_evt, 0),
      |  ^~~~~~
net/bluetooth/hci_event.c:6776:24: note: (near initialization for 'hci_ev_table[255].<anonymous>.func')
 6776 |  HCI_EV(HCI_EV_VENDOR, msft_vendor_evt, 0),
      |                        ^~~~~~~~~~~~~~~
net/bluetooth/hci_event.c:6599:10: note: in definition of macro 'HCI_EV_VL'
 6599 |  .func = _func, \
      |          ^~~~~
net/bluetooth/hci_event.c:6776:2: note: in expansion of macro 'HCI_EV'
 6776 |  HCI_EV(HCI_EV_VENDOR, msft_vendor_evt, 0),
      |  ^~~~~~
cc1: some warnings being treated as errors

Caused by commit

  6b3d4c8fcf3f ("Bluetooth: hci_event: Use of a function table to handle HCI events")

There are 2 declarations of msft_vendor_evt() in net/bluetooth/msft.h ...

I have used the bluetooth tree from next-20211203 for today.

-- 
Cheers,
Stephen Rothwell

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