linux-kernel - [mingo-tip:sched/headers 2394/2579] kernel/module_decompress.c:226:65: error: 'PAGE

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Date:   Thu, 21 Apr 2022 14:43:08 +0800
From:   kernel test robot <lkp@...el.com>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [mingo-tip:sched/headers 2394/2579]
 kernel/module_decompress.c:226:65: error: 'PAGE_KERNEL' undeclared

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git sched/headers
head:   49e1ec6c70a6eb4b7de9250a455b8b63eb42afbe
commit: 121f9c630c04142cd7a6ada2c297d5e5c85d73d3 [2394/2579] headers/deps: mm: Optimize <linux/highmem.h> dependencies, remove MM headers from the !CONFIG_HIGHMEM path
config: sparc64-randconfig-r015-20220420 (https://download.01.org/0day-ci/archive/20220421/202204210620.WCK3GeUD-lkp@intel.com/config)
compiler: sparc64-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://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git/commit/?id=121f9c630c04142cd7a6ada2c297d5e5c85d73d3
        git remote add mingo-tip git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git
        git fetch --no-tags mingo-tip sched/headers
        git checkout 121f9c630c04142cd7a6ada2c297d5e5c85d73d3
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross W=1 O=build_dir ARCH=sparc64 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

   kernel/module_decompress.c: In function 'module_decompress':
>> kernel/module_decompress.c:226:65: error: 'PAGE_KERNEL' undeclared (first use in this function)
     226 |         info->hdr = vmap(info->pages, info->used_pages, VM_MAP, PAGE_KERNEL);
         |                                                                 ^~~~~~~~~~~
   kernel/module_decompress.c:226:65: note: each undeclared identifier is reported only once for each function it appears in


vim +/PAGE_KERNEL +226 kernel/module_decompress.c

b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  206  
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  207  int module_decompress(struct load_info *info, const void *buf, size_t size)
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  208  {
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  209  	unsigned int n_pages;
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  210  	ssize_t data_size;
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  211  	int error;
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  212  
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  213  	/*
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  214  	 * Start with number of pages twice as big as needed for
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  215  	 * compressed data.
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  216  	 */
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  217  	n_pages = DIV_ROUND_UP(size, PAGE_SIZE) * 2;
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  218  	error = module_extend_max_pages(info, n_pages);
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  219  
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  220  	data_size = MODULE_DECOMPRESS_FN(info, buf, size);
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  221  	if (data_size < 0) {
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  222  		error = data_size;
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  223  		goto err;
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  224  	}
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  225  
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05 @226  	info->hdr = vmap(info->pages, info->used_pages, VM_MAP, PAGE_KERNEL);
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  227  	if (!info->hdr) {
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  228  		error = -ENOMEM;
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  229  		goto err;
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  230  	}
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  231  
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  232  	info->len = data_size;
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  233  	return 0;
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  234  
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  235  err:
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  236  	module_decompress_cleanup(info);
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  237  	return error;
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  238  }
b1ae6dc41eaaa9 Dmitry Torokhov 2022-01-05  239  

:::::: The code at line 226 was first introduced by commit
:::::: b1ae6dc41eaaa98bb75671e0f3665bfda248c3e7 module: add in-kernel support for decompressing

:::::: TO: Dmitry Torokhov <dmitry.torokhov@...il.com>
:::::: CC: Luis Chamberlain <mcgrof@...nel.org>

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