linux-kernel - [l1k:smsc95xx_5.17 76/887] drivers/video/fbdev/rpisense-fb.c:203:34: error: implicit declaration of function 'vzalloc'; did you mean 'kvzalloc'?

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Message-ID: <202204081542.rzWZZRnZ-lkp@intel.com>
Date:   Fri, 8 Apr 2022 15:38:49 +0800
From:   kernel test robot <lkp@...el.com>
To:     Phil Elwell <pelwell@...rs.noreply.github.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Dom Cobley <popcornmix@...il.com>
Subject: [l1k:smsc95xx_5.17 76/887] drivers/video/fbdev/rpisense-fb.c:203:34:
 error: implicit declaration of function 'vzalloc'; did you mean 'kvzalloc'?

tree:   https://github.com/l1k/linux smsc95xx_5.17
head:   05d68ced287b30f62f18f95b5476135ef669804a
commit: b722bea6165a6e42fff47ede05186cb53542689e [76/887] mfd: Add Raspberry Pi Sense HAT core driver
config: sh-allmodconfig (https://download.01.org/0day-ci/archive/20220408/202204081542.rzWZZRnZ-lkp@intel.com/config)
compiler: sh4-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/l1k/linux/commit/b722bea6165a6e42fff47ede05186cb53542689e
        git remote add l1k https://github.com/l1k/linux
        git fetch --no-tags l1k smsc95xx_5.17
        git checkout b722bea6165a6e42fff47ede05186cb53542689e
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=sh SHELL=/bin/bash drivers/video/fbdev/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All error/warnings (new ones prefixed by >>):

   drivers/video/fbdev/rpisense-fb.c: In function 'rpisense_fb_probe':
>> drivers/video/fbdev/rpisense-fb.c:203:34: error: implicit declaration of function 'vzalloc'; did you mean 'kvzalloc'? [-Werror=implicit-function-declaration]
     203 |         rpisense_fb_param.vmem = vzalloc(rpisense_fb_param.vmemsize);
         |                                  ^~~~~~~
         |                                  kvzalloc
>> drivers/video/fbdev/rpisense-fb.c:203:32: warning: assignment to 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
     203 |         rpisense_fb_param.vmem = vzalloc(rpisense_fb_param.vmemsize);
         |                                ^
>> drivers/video/fbdev/rpisense-fb.c:246:9: error: implicit declaration of function 'vfree'; did you mean 'kfree'? [-Werror=implicit-function-declaration]
     246 |         vfree(rpisense_fb_param.vmem);
         |         ^~~~~
         |         kfree
   cc1: some warnings being treated as errors


vim +203 drivers/video/fbdev/rpisense-fb.c

   193	
   194	static int rpisense_fb_probe(struct platform_device *pdev)
   195	{
   196		struct fb_info *info;
   197		int ret = -ENOMEM;
   198		struct rpisense_fb *rpisense_fb;
   199	
   200		rpisense = rpisense_get_dev();
   201		rpisense_fb = &rpisense->framebuffer;
   202	
 > 203		rpisense_fb_param.vmem = vzalloc(rpisense_fb_param.vmemsize);
   204		if (!rpisense_fb_param.vmem)
   205			return ret;
   206	
   207		rpisense_fb_param.vmem_work = devm_kmalloc(&pdev->dev, 193, GFP_KERNEL);
   208		if (!rpisense_fb_param.vmem_work)
   209			goto err_malloc;
   210	
   211		info = framebuffer_alloc(0, &pdev->dev);
   212		if (!info) {
   213			dev_err(&pdev->dev, "Could not allocate framebuffer.\n");
   214			goto err_malloc;
   215		}
   216		rpisense_fb->info = info;
   217	
   218		rpisense_fb_fix.smem_start = (unsigned long)rpisense_fb_param.vmem;
   219		rpisense_fb_fix.smem_len = rpisense_fb_param.vmemsize;
   220	
   221		info->fbops = &rpisense_fb_ops;
   222		info->fix = rpisense_fb_fix;
   223		info->var = rpisense_fb_var;
   224		info->fbdefio = &rpisense_fb_defio;
   225		info->flags = FBINFO_FLAG_DEFAULT | FBINFO_VIRTFB;
   226		info->screen_base = rpisense_fb_param.vmem;
   227		info->screen_size = rpisense_fb_param.vmemsize;
   228	
   229		if (lowlight)
   230			rpisense_fb_param.gamma = gamma_low;
   231	
   232		fb_deferred_io_init(info);
   233	
   234		ret = register_framebuffer(info);
   235		if (ret < 0) {
   236			dev_err(&pdev->dev, "Could not register framebuffer.\n");
   237			goto err_fballoc;
   238		}
   239	
   240		fb_info(info, "%s frame buffer device\n", info->fix.id);
   241		schedule_delayed_work(&info->deferred_work, rpisense_fb_defio.delay);
   242		return 0;
   243	err_fballoc:
   244		framebuffer_release(info);
   245	err_malloc:
 > 246		vfree(rpisense_fb_param.vmem);
   247		return ret;
   248	}
   249	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp