Subject: Re: linux-next: build failure after merge of the tegra tree

From: Dmitry Osipenko <[email-masked]>
Date: Tue, 5 Oct 2021 02:54:43 +0300

05.10.2021 02:39, Stephen Rothwell пишет:
> Hi all,
> 
> After merging the tegra tree, today's linux-next build (x86_64
> allmodconfig) failed like this:
> 
> In file included from arch/x86/include/asm/bug.h:84,
>                  from include/linux/bug.h:5,
>                  from arch/x86/include/asm/paravirt.h:15,
>                  from arch/x86/include/asm/irqflags.h:63,
>                  from include/linux/irqflags.h:16,
>                  from include/linux/rcupdate.h:26,
>                  from include/linux/rculist.h:11,
>                  from include/linux/pid.h:5,
>                  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/of_reserved_mem.h:5,
>                  from drivers/memory/tegra/tegra210-emc-table.c:6:
> include/linux/clk/tegra.h: In function 'tegra_cpu_rail_off_ready':
> include/linux/clk/tegra.h:112:15: error: 'tegra_cpu_car_ops' undeclared (first use in this function)
>   112 |  if (WARN_ON(!tegra_cpu_car_ops->rail_off_ready))
>       |               ^~~~~~~~~~~~~~~~~
> include/asm-generic/bug.h:121:25: note: in definition of macro 'WARN_ON'
>   121 |  int __ret_warn_on = !!(condition);    \
>       |                         ^~~~~~~~~
> include/linux/clk/tegra.h:112:15: note: each undeclared identifier is reported only once for each function it appears in
>   112 |  if (WARN_ON(!tegra_cpu_car_ops->rail_off_ready))
>       |               ^~~~~~~~~~~~~~~~~
> include/asm-generic/bug.h:121:25: note: in definition of macro 'WARN_ON'
>   121 |  int __ret_warn_on = !!(condition);    \
>       |                         ^~~~~~~~~
> include/linux/clk/tegra.h: In function 'tegra_cpu_clock_suspend':
> include/linux/clk/tegra.h:120:15: error: 'tegra_cpu_car_ops' undeclared (first use in this function)
>   120 |  if (WARN_ON(!tegra_cpu_car_ops->suspend))
>       |               ^~~~~~~~~~~~~~~~~
> include/asm-generic/bug.h:121:25: note: in definition of macro 'WARN_ON'
>   121 |  int __ret_warn_on = !!(condition);    \
>       |                         ^~~~~~~~~
> include/linux/clk/tegra.h: In function 'tegra_cpu_clock_resume':
> include/linux/clk/tegra.h:128:15: error: 'tegra_cpu_car_ops' undeclared (first use in this function)
>   128 |  if (WARN_ON(!tegra_cpu_car_ops->resume))
>       |               ^~~~~~~~~~~~~~~~~
> include/asm-generic/bug.h:121:25: note: in definition of macro 'WARN_ON'
>   121 |  int __ret_warn_on = !!(condition);    \
>       |                         ^~~~~~~~~
> In file included from arch/x86/include/asm/bug.h:84,
>                  from include/linux/bug.h:5,
>                  from include/linux/cpumask.h:14,
>                  from arch/x86/include/asm/cpumask.h:5,
>                  from arch/x86/include/asm/msr.h:11,
>                  from arch/x86/include/asm/processor.h:22,
>                  from arch/x86/include/asm/timex.h:5,
>                  from include/linux/timex.h:65,
>                  from include/linux/time32.h:13,
>                  from include/linux/time.h:60,
>                  from include/linux/stat.h:19,
>                  from include/linux/module.h:13,
>                  from drivers/media/cec/platform/tegra/tegra_cec.c:14:
> include/linux/clk/tegra.h: In function 'tegra_cpu_rail_off_ready':
> include/linux/clk/tegra.h:112:15: error: 'tegra_cpu_car_ops' undeclared (first use in this function)
>   112 |  if (WARN_ON(!tegra_cpu_car_ops->rail_off_ready))
>       |               ^~~~~~~~~~~~~~~~~
> include/asm-generic/bug.h:121:25: note: in definition of macro 'WARN_ON'
>   121 |  int __ret_warn_on = !!(condition);    \
>       |                         ^~~~~~~~~
> include/linux/clk/tegra.h:112:15: note: each undeclared identifier is reported only once for each function it appears in
>   112 |  if (WARN_ON(!tegra_cpu_car_ops->rail_off_ready))
>       |               ^~~~~~~~~~~~~~~~~
> include/asm-generic/bug.h:121:25: note: in definition of macro 'WARN_ON'
>   121 |  int __ret_warn_on = !!(condition);    \
>       |                         ^~~~~~~~~
> include/linux/clk/tegra.h: In function 'tegra_cpu_clock_suspend':
> include/linux/clk/tegra.h:120:15: error: 'tegra_cpu_car_ops' undeclared (first use in this function)
>   120 |  if (WARN_ON(!tegra_cpu_car_ops->suspend))
>       |               ^~~~~~~~~~~~~~~~~
> include/asm-generic/bug.h:121:25: note: in definition of macro 'WARN_ON'
>   121 |  int __ret_warn_on = !!(condition);    \
>       |                         ^~~~~~~~~
> include/linux/clk/tegra.h: In function 'tegra_cpu_clock_resume':
> include/linux/clk/tegra.h:128:15: error: 'tegra_cpu_car_ops' undeclared (first use in this function)
>   128 |  if (WARN_ON(!tegra_cpu_car_ops->resume))
>       |               ^~~~~~~~~~~~~~~~~
> include/asm-generic/bug.h:121:25: note: in definition of macro 'WARN_ON'
>   121 |  int __ret_warn_on = !!(condition);    \
>       |                         ^~~~~~~~~
> 
> Presumably caused by commit
> 
>   bbe30ae68d14 ("cpuidle: tegra: Enable compile testing")
> 
> I have used the tegra tree from next-20211001 for today.
> 

Stephen, thank you. Now I recall what was the actual reason for my
version of the patch [1]. Thierry, please use my original patch, thanks.

[1]
https://patchwork.ozlabs.org/project/linux-tegra/patch/[email-masked]/