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Subject[hch-misc:dax-support-cleanups 2/9] drivers/dax/super.c:168:6: error: redefinition of 'bdev_dax_supported'
tree:   git://git.infradead.org/users/hch/misc.git dax-support-cleanups
head: 4b01cc047f5c0a9139340eaae24ec0b80f869396
commit: 306e4c90987837ad7874bc0bc89a55548df3b0a9 [2/9] dax: rename __bdev_dax_supported to bdev_dax_supported
config: m68k-amiga_defconfig (attached as .config)
compiler: m68k-linux-gcc (GCC) 10.3.0
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
git remote add hch-misc git://git.infradead.org/users/hch/misc.git
git fetch --no-tags hch-misc dax-support-cleanups
git checkout 306e4c90987837ad7874bc0bc89a55548df3b0a9
# save the attached .config to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross O=build_dir ARCH=m68k SHELL=/bin/bash drivers/dax/

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

All errors (new ones prefixed by >>):

>> drivers/dax/super.c:168:6: error: redefinition of 'bdev_dax_supported'
168 | bool bdev_dax_supported(struct block_device *bdev, int blocksize)
| ^~~~~~~~~~~~~~~~~~
In file included from drivers/dax/super.c:16:
include/linux/dax.h:179:20: note: previous definition of 'bdev_dax_supported' was here
179 | static inline bool bdev_dax_supported(struct block_device *bdev,
| ^~~~~~~~~~~~~~~~~~
drivers/dax/super.c:449:6: warning: no previous prototype for 'run_dax' [-Wmissing-prototypes]
449 | void run_dax(struct dax_device *dax_dev)
| ^~~~~~~


vim +/bdev_dax_supported +168 drivers/dax/super.c

157
158 /**
159 * bdev_dax_supported() - Check if the device supports dax for filesystem
160 * @bdev: block device to check
161 * @blocksize: The block size of the device
162 *
163 * This is a library function for filesystems to check if the block device
164 * can be mounted with dax option.
165 *
166 * Return: true if supported, false if unsupported
167 */
> 168 bool bdev_dax_supported(struct block_device *bdev, int blocksize)
169 {
170 struct dax_device *dax_dev;
171 struct request_queue *q;
172 bool ret;
173 int id;
174
175 q = bdev_get_queue(bdev);
176 if (!q || !blk_queue_dax(q)) {
177 pr_info("%pg: error: request queue doesn't support dax\n", bdev);
178 return false;
179 }
180
181 dax_dev = dax_get_by_host(bdev->bd_disk->disk_name);
182 if (!dax_dev) {
183 pr_info("%pg: error: device does not support dax\n", bdev);
184 return false;
185 }
186
187 id = dax_read_lock();
188 ret = dax_supported(dax_dev, bdev, blocksize, 0,
189 i_size_read(bdev->bd_inode) / 512);
190 dax_read_unlock(id);
191
192 put_dax(dax_dev);
193
194 return ret;
195 }
196 EXPORT_SYMBOL_GPL(bdev_dax_supported);
197 #endif
198

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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