linux-kernel - [PATCH] fbdev/ps3fb: Build without kernel device

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Date:   Mon, 31 Jul 2023 19:55:00 +0200
From:   Thomas Zimmermann <tzimmermann@...e.de>
To:     deller@....de, mpe@...erman.id.au, npiggin@...il.com,
        christophe.leroy@...roup.eu, sam@...nborg.org, javierm@...hat.com,
        bagasdotme@...il.com, rd.dunlab@...il.com,
        regressions@...mhuis.info, sfr@...b.auug.org.au
Cc:     linux-kernel@...r.kernel.org, linux-fbdev@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, regressions@...ts.linux.dev,
        linux-next@...r.kernel.org,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Randy Dunlap <rdunlap@...radead.org>,
        dri-devel@...ts.freedesktop.org
Subject: [PATCH] fbdev/ps3fb: Build without kernel device

Use fb_info() to print status message at the end of the probe function,
which avoids decoding the devices. fb_info() works with or without an
fbdev kernel device. Fixes the following error:

../drivers/video/fbdev/ps3fb.c: In function 'ps3fb_probe':
../drivers/video/fbdev/ps3fb.c:1172:40: error: 'struct fb_info' has no member named 'dev'
 1172 |                  dev_driver_string(info->dev), dev_name(info->dev),
      |                                        ^~
../include/linux/dev_printk.h:110:37: note: in definition of macro 'dev_printk_index_wrap'
  110 |                 _p_func(dev, fmt, ##__VA_ARGS__);                       \
      |                                     ^~~~~~~~~~~
../drivers/video/fbdev/ps3fb.c:1171:9: note: in expansion of macro 'dev_info'
 1171 |         dev_info(info->device, "%s %s, using %u KiB of video memory\n",
      |         ^~~~~~~~
../drivers/video/fbdev/ps3fb.c:1172:61: error: 'struct fb_info' has no member named 'dev'
 1172 |                  dev_driver_string(info->dev), dev_name(info->dev),
      |                                                             ^~
../include/linux/dev_printk.h:110:37: note: in definition of macro 'dev_printk_index_wrap'
  110 |                 _p_func(dev, fmt, ##__VA_ARGS__);                       \
      |                                     ^~~~~~~~~~~
../drivers/video/fbdev/ps3fb.c:1171:9: note: in expansion of macro 'dev_info'
 1171 |         dev_info(info->device, "%s %s, using %u KiB of video memory\n",
      |         ^~~~~~~~

Reported-by: Randy Dunlap <rdunlap@...radead.org>
Closes: https://lore.kernel.org/lkml/ccc63065-2976-88ef-1211-731330bf2866@infradead.org/
Signed-off-by: Thomas Zimmermann <tzimmermann@...e.de>
Fixes: 701d2054fa31 ("fbdev: Make support for userspace interfaces configurable")
Cc: Michael Ellerman <mpe@...erman.id.au>
Cc: Sam Ravnborg <sam@...nborg.org>
Cc: Helge Deller <deller@....de>
Cc: Javier Martinez Canillas <javierm@...hat.com>
Cc: Randy Dunlap <rdunlap@...radead.org>
Cc: Bagas Sanjaya <bagasdotme@...il.com>
Cc: Thorsten Leemhuis <regressions@...mhuis.info>
Cc: dri-devel@...ts.freedesktop.org
Cc: linux-fbdev@...r.kernel.org
Cc: linuxppc-dev@...ts.ozlabs.org
---
 drivers/video/fbdev/ps3fb.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/video/fbdev/ps3fb.c b/drivers/video/fbdev/ps3fb.c
index 5aedc30c5f7e..64d291d6b153 100644
--- a/drivers/video/fbdev/ps3fb.c
+++ b/drivers/video/fbdev/ps3fb.c
@@ -1168,9 +1168,7 @@ static int ps3fb_probe(struct ps3_system_bus_device *dev)
 
 	ps3_system_bus_set_drvdata(dev, info);
 
-	dev_info(info->device, "%s %s, using %u KiB of video memory\n",
-		 dev_driver_string(info->dev), dev_name(info->dev),
-		 info->fix.smem_len >> 10);
+	fb_info(info, "using %u KiB of video memory\n", info->fix.smem_len >> 10);
 
 	task = kthread_run(ps3fbd, info, DEVICE_NAME);
 	if (IS_ERR(task)) {
-- 
2.41.0