linux-kernel - Re: drivers/net/wwan/iosm/iosm_ipc_protocol.c:244:36: error: passing argument 3 of 'dma_alloc_coherent' from incompatible pointer type [-Werror=incompatible-pointer-types]

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Message-ID: <3150689.e9J7NaK4W3@bagend>
Date:   Mon, 21 Nov 2022 15:16:52 +0100
From:   Diederik de Haas <didi.debian@...ow.org>
To:     "Bonaccorso, Salvatore" <carnil@...ian.org>,
        "Kumar, M Chetan" <m.chetan.kumar@...el.com>
Cc:     "davem@...emloft.net" <davem@...emloft.net>,
        "edumazet@...gle.com" <edumazet@...gle.com>,
        "johannes@...solutions.net" <johannes@...solutions.net>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        linuxwwan <linuxwwan@...el.com>,
        "loic.poulain@...aro.org" <loic.poulain@...aro.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "pabeni@...hat.com" <pabeni@...hat.com>,
        "ryazanov.s.a@...il.com" <ryazanov.s.a@...il.com>
Subject: Re: drivers/net/wwan/iosm/iosm_ipc_protocol.c:244:36: error: passing argument 3 of 'dma_alloc_coherent' from incompatible pointer type [-Werror=incompatible-pointer-types]

Hi Chetan,

On Monday, 21 November 2022 14:47:20 CET Kumar, M Chetan wrote:
> I tried reproducing it at my side by compiling kernel for armhf
> configuration [1] but could not reproduce it. Could you please share the
> steps and config details for reproducing it locally so that I can take a
> look at it.

I have a clone of the upstream kernel in ~/dev/kernel.org/linux
You also need a clone of https://salsa.debian.org/kernel-team/linux

All the commands are done from the 'kernel-team/linux' dir.

The configuration file for compilation is generated from the `debian/config` dir.

# Create an 'orig' tarball from upstream 6.1-rc5
$ debian/bin/genorig.py ~/dev/kernel.org/linux/

# set some (cross compile) build options (with 14 cores)
$ export DEB_BUILD_OPTIONS="parallel=14"
$ export DEB_BUILD_PROFILES="cross nodoc pkg.linux.nosource pkg.linux.notools pkg.linux.nokerneldbg"
$ export ARCH=armhf
$ export CC=arm-linux-gnueabihf-gcc-12
$ dpkg-architecture --host-arch armhf

# Clean things up and do the actual build
$ dpkg-architecture -c fakeroot debian/rules maintainerclean
$ dpkg-architecture -c debian/rules orig
$ time dpkg-architecture -c fakeroot debian/rules binary-indep
$ time dpkg-architecture -c fakeroot debian/rules binary-arch

HTH,
  Diederik
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