On Sat, Jun 24, 2023, at 03:55, Guenter Roeck wrote:

On Mon, Apr 17, 2023 at 02:56:49PM +0200, Thomas Zimmermann wrote:

quoted

Other architectures implment fb_is_primary_device() in a source
file. Do the same on sparc. No functional changes, but allows to
remove several include statement from <asm/fb.h>.

v2:
	* don't include <asm/prom.h> in header file

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: "David S. Miller" <davem@davemloft.net>

This patch results (or appears to result) in the following build error
when trying to build sparc64:allmodconfig.

Error log:
<stdin>:1519:2: warning: #warning syscall clone3 not implemented [-Wcpp]
WARNING: modpost: drivers/cpufreq/sparc-us2e-cpufreq: section mismatch 
in reference: cpufreq_us2e_driver+0x20 (section: .data) -> 
us2e_freq_cpu_init (section: .init.text)
WARNING: modpost: drivers/cpufreq/sparc-us3-cpufreq: section mismatch 
in reference: cpufreq_us3_driver+0x20 (section: .data) -> 
us3_freq_cpu_init (section: .init.text)
ERROR: modpost: "__xchg_called_with_bad_pointer" [lib/atomic64_test.ko] 
undefined!

These all look like old bugs that would be trivially fixed if
anyone cared about sparc.

ERROR: modpost: missing MODULE_LICENSE() in arch/sparc/video/fbdev.o

I checked that there are no callers of fb_is_primary_device()
in built-in code when CONFIG_FB is =m, so adding the MODULE_LICENSE()
and MODULE_DESCRIPTION() tags to the file is the correct fix.

    Arnd