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

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Date:   Tue, 23 Jun 2020 14:16:38 +0200
From:   Petr Mladek <pmladek@...e.com>
To:     Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        "Steven Rostedt (VMware)" <rostedt@...dmis.org>,
        Heiko Carstens <heiko.carstens@...ibm.com>
Subject: Re: linux-next: build failure after merge of the printk tree

On Tue 2020-06-23 10:26:55, Stephen Rothwell wrote:
> Hi Stephen,
> 
> On Sun, 21 Jun 2020 13:15:54 +1000 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> >
> > Hi all,
> > 
> > After merging the printk tree, today's linux-next build (x86_64
> > allmodconfig) failed like this:
> > 
> > In file included from include/linux/printk.h:10,
> >                  from include/linux/kernel.h:15,
> >                  from include/linux/list.h:9,
> >                  from include/linux/lockdep.h:43,
> >                  from include/linux/spinlock_types.h:18,
> >                  from include/linux/genalloc.h:32,
> >                  from drivers/soc/fsl/qe/qe_common.c:16:
> > include/linux/ratelimit_types.h:16:2: error: unknown type name 'raw_spinlock_t'
> >    16 |  raw_spinlock_t lock;  /* protect the state */
> >       |  ^~~~~~~~~~~~~~
> > In file included from include/linux/wait.h:9,
> >                  from include/linux/pid.h:6,
> >                  from include/linux/sched.h:14,
> >                  from include/linux/ratelimit.h:6,
> >                  from include/linux/dev_printk.h:16,
> >                  from include/linux/device.h:15,
> >                  from include/linux/node.h:18,
> >                  from include/linux/cpu.h:17,
> >                  from include/linux/of_device.h:5,
> >                  from drivers/soc/fsl/qe/qe_common.c:19:
> > include/linux/ratelimit.h: In function 'ratelimit_state_init':
> > include/linux/ratelimit.h:14:21: error: passing argument 1 of '__raw_spin_lock_init' from incompatible pointer type [-Werror=incompatible-pointer-types]
> >    14 |  raw_spin_lock_init(&rs->lock);
> > include/linux/spinlock.h:102:24: note: in definition of macro 'raw_spin_lock_init'
> >   102 |  __raw_spin_lock_init((lock), #lock, &__key, LD_WAIT_SPIN); \
> >       |                        ^~~~
> > include/linux/spinlock.h:95:52: note: expected 'raw_spinlock_t *' {aka 'struct raw_spinlock *'} but argument is of type 'int *'
> >    95 |   extern void __raw_spin_lock_init(raw_spinlock_t *lock, const char *name,
> >       |                                    ~~~~~~~~~~~~~~~~^~~~
> > 
> > Caused by commit
> > 
> >   494c8512c90e ("printk: Make linux/printk.h self-contained")
> > 
> > changing include files is hadrer than it loooks :-(
> > 
> > I have used the printk tree from next-20200618 for today.
> 
> I am still getting this failure.

I have removed the problematic commit for now. It tried to remove
some cyclic dependencies from heavily used include files. It clearly
needs more love.

I am sorry for the late reaction. I have semi-lost mails from last 4 days.
I am still trying to recover them.

Best Regards,
Petr