Hi, It seems like a false alarm. The 0-DAY tree does not contain the same content as regmap/for-next tree.
>From the patch series "regmap: debugfs: Add support for dumping write only >device registers the" the PATCH v2 1/2 is missing form 0-DAY tree while the >PATCH v2 2/2 is applied. This triggered the warning. Let's wait for a new >build ... Cristi On 08/09/2016 04:18 PM, kbuild test robot wrote: > Hi Mark, > > [auto build test WARNING on regmap/for-next] > [also build test WARNING on v4.8-rc1 next-20160809] > [if your patch is applied to the wrong git tree, please drop us a note to > help improve the system] > > url: > https://github.com/0day-ci/linux/commits/Mark-Brown/Applied-regmap-debugfs-Add-support-for-dumping-write-only-device-registers-to-the-regmap-tree/20160809-205351 > base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap.git > for-next > config: x86_64-randconfig-x019-201632 (attached as .config) > compiler: gcc-6 (Debian 6.1.1-9) 6.1.1 20160705 > reproduce: > # save the attached .config to linux build tree > make ARCH=x86_64 > > All warnings (new ones prefixed by >>): > > In file included from include/asm-generic/bug.h:4:0, > from arch/x86/include/asm/bug.h:35, > from include/linux/bug.h:4, > from include/linux/mmdebug.h:4, > from include/linux/gfp.h:4, > from include/linux/slab.h:14, > from drivers/base/regmap/regmap-debugfs.c:13: > drivers/base/regmap/regmap-debugfs.c: In function 'regmap_printable': > drivers/base/regmap/regmap-debugfs.c:85:37: error: implicit declaration of > function 'regmap_cached' [-Werror=implicit-function-declaration] > if (!regmap_readable(map, reg) && !regmap_cached(map, reg)) > ^ > include/linux/compiler.h:151:30: note: in definition of macro '__trace_if' > if (__builtin_constant_p(!!(cond)) ? !!(cond) : \ > ^~~~ >>> drivers/base/regmap/regmap-debugfs.c:85:2: note: in expansion of macro 'if' > if (!regmap_readable(map, reg) && !regmap_cached(map, reg)) > ^~ > cc1: some warnings being treated as errors > > vim +/if +85 drivers/base/regmap/regmap-debugfs.c > > 7 * > 8 * This program is free software; you can redistribute it > and/or modify > 9 * it under the terms of the GNU General Public License version > 2 as > 10 * published by the Free Software Foundation. > 11 */ > 12 > > 13 #include <linux/slab.h> > 14 #include <linux/mutex.h> > 15 #include <linux/debugfs.h> > 16 #include <linux/uaccess.h> > 17 #include <linux/device.h> > 18 #include <linux/list.h> > 19 > 20 #include "internal.h" > 21 > 22 struct regmap_debugfs_node { > 23 struct regmap *map; > 24 const char *name; > 25 struct list_head link; > 26 }; > 27 > 28 static struct dentry *regmap_debugfs_root; > 29 static LIST_HEAD(regmap_debugfs_early_list); > 30 static DEFINE_MUTEX(regmap_debugfs_early_lock); > 31 > 32 /* Calculate the length of a fixed format */ > 33 static size_t regmap_calc_reg_len(int max_val) > 34 { > 35 return snprintf(NULL, 0, "%x", max_val); > 36 } > 37 > 38 static ssize_t regmap_name_read_file(struct file *file, > 39 char __user *user_buf, > size_t count, > 40 loff_t *ppos) > 41 { > 42 struct regmap *map = file->private_data; > 43 int ret; > 44 char *buf; > 45 > 46 buf = kmalloc(PAGE_SIZE, GFP_KERNEL); > 47 if (!buf) > 48 return -ENOMEM; > 49 > 50 ret = snprintf(buf, PAGE_SIZE, "%s\n", > map->dev->driver->name); > 51 if (ret < 0) { > 52 kfree(buf); > 53 return ret; > 54 } > 55 > 56 ret = simple_read_from_buffer(user_buf, count, ppos, > buf, ret); > 57 kfree(buf); > 58 return ret; > 59 } > 60 > 61 static const struct file_operations regmap_name_fops = { > 62 .open = simple_open, > 63 .read = regmap_name_read_file, > 64 .llseek = default_llseek, > 65 }; > 66 > 67 static void regmap_debugfs_free_dump_cache(struct regmap *map) > 68 { > 69 struct regmap_debugfs_off_cache *c; > 70 > 71 while (!list_empty(&map->debugfs_off_cache)) { > 72 c = list_first_entry(&map->debugfs_off_cache, > 73 struct > regmap_debugfs_off_cache, > 74 list); > 75 list_del(&c->list); > 76 kfree(c); > 77 } > 78 } > 79 > 80 static bool regmap_printable(struct regmap *map, unsigned int > reg) > 81 { > 82 if (regmap_precious(map, reg)) > 83 return false; > 84 > > 85 if (!regmap_readable(map, reg) && !regmap_cached(map, > reg)) > 86 return false; > 87 > 88 return true; > > --- > 0-DAY kernel test infrastructure Open Source Technology Center > https://lists.01.org/pipermail/kbuild-all Intel Corporation >
