Hi Anatol, [auto build test WARNING on regmap/for-next -- if it's inappropriate base, please suggest rules for selecting the more suitable base]
url: https://github.com/0day-ci/linux/commits/Anatol-Pomozov/regmap-Add-a-config-option-for-making-regmap-debugfs-writable/20151014-014929 config: mn10300-allyesconfig (attached as .config) reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=mn10300 All warnings (new ones prefixed by >>): In file included from include/linux/list.h:8:0, from include/linux/preempt.h:10, from include/linux/spinlock.h:50, from include/linux/mmzone.h:7, from include/linux/gfp.h:5, from include/linux/slab.h:14, from drivers/base/regmap/regmap-debugfs.c:13: drivers/base/regmap/regmap-debugfs.c: In function 'regmap_map_write_file': include/linux/kernel.h:722:17: warning: comparison of distinct pointer types lacks a cast (void) (&_min1 == &_min2); \ ^ >> drivers/base/regmap/regmap-debugfs.c:280:13: note: in expansion of macro >> 'min' buf_size = min(count, (sizeof(buf)-1)); ^ vim +/min +280 drivers/base/regmap/regmap-debugfs.c 09c6ecd3 Dimitris Papastamos 2012-02-22 264 * This can be dangerous especially when we have clients such as 09c6ecd3 Dimitris Papastamos 2012-02-22 265 * PMICs, therefore don't provide any real compile time configuration option 09c6ecd3 Dimitris Papastamos 2012-02-22 266 * for this feature, people who want to use this will need to modify 09c6ecd3 Dimitris Papastamos 2012-02-22 267 * the source code directly. 09c6ecd3 Dimitris Papastamos 2012-02-22 268 */ 09c6ecd3 Dimitris Papastamos 2012-02-22 269 static ssize_t regmap_map_write_file(struct file *file, 09c6ecd3 Dimitris Papastamos 2012-02-22 270 const char __user *user_buf, 09c6ecd3 Dimitris Papastamos 2012-02-22 271 size_t count, loff_t *ppos) 09c6ecd3 Dimitris Papastamos 2012-02-22 272 { 09c6ecd3 Dimitris Papastamos 2012-02-22 273 char buf[32]; 09c6ecd3 Dimitris Papastamos 2012-02-22 274 size_t buf_size; 09c6ecd3 Dimitris Papastamos 2012-02-22 275 char *start = buf; 09c6ecd3 Dimitris Papastamos 2012-02-22 276 unsigned long reg, value; 09c6ecd3 Dimitris Papastamos 2012-02-22 277 struct regmap *map = file->private_data; 68e850d8 Dimitris Papastamos 2013-05-09 278 int ret; 09c6ecd3 Dimitris Papastamos 2012-02-22 279 09c6ecd3 Dimitris Papastamos 2012-02-22 @280 buf_size = min(count, (sizeof(buf)-1)); 09c6ecd3 Dimitris Papastamos 2012-02-22 281 if (copy_from_user(buf, user_buf, buf_size)) 09c6ecd3 Dimitris Papastamos 2012-02-22 282 return -EFAULT; 09c6ecd3 Dimitris Papastamos 2012-02-22 283 buf[buf_size] = 0; 09c6ecd3 Dimitris Papastamos 2012-02-22 284 09c6ecd3 Dimitris Papastamos 2012-02-22 285 while (*start == ' ') 09c6ecd3 Dimitris Papastamos 2012-02-22 286 start++; 09c6ecd3 Dimitris Papastamos 2012-02-22 287 reg = simple_strtoul(start, &start, 16); 09c6ecd3 Dimitris Papastamos 2012-02-22 288 while (*start == ' ') :::::: The code at line 280 was first introduced by commit :::::: 09c6ecd394105c4864a0e409e181c9b1578c2a63 regmap: Add support for writing to regmap registers via debugfs :::::: TO: Dimitris Papastamos <d...@opensource.wolfsonmicro.com> :::::: CC: Mark Brown <broo...@opensource.wolfsonmicro.com> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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