Hi zhichang.yuan, [auto build test ERROR on linus/master] [also build test ERROR on v4.11-rc4 next-20170331] [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/zhichang-yuan/LIBIO-Introduce-a-generic-PIO-mapping-method/20170401-104801 config: alpha-allyesconfig (attached as .config) compiler: alpha-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=alpha All error/warnings (new ones prefixed by >>): >> lib/logic_pio.c:32:50: error: 'PIO_MAX_SECT' undeclared here (not in a function) static struct logic_pio_root logic_pio_root_list[PIO_MAX_SECT] = { ^~~~~~~~~~~~ >> lib/logic_pio.c:39:3: error: 'PIO_CPU_MMIO' undeclared here (not in a function) [PIO_CPU_MMIO ... PIO_INDIRECT - 1] = { ^~~~~~~~~~~~ >> lib/logic_pio.c:39:20: error: 'PIO_INDIRECT' undeclared here (not in a function) [PIO_CPU_MMIO ... PIO_INDIRECT - 1] = { ^~~~~~~~~~~~ >> lib/logic_pio.c:39:3: error: array index in initializer not of integer type [PIO_CPU_MMIO ... PIO_INDIRECT - 1] = { ^~~~~~~~~~~~ lib/logic_pio.c:39:3: note: (near initialization for 'logic_pio_root_list') >> lib/logic_pio.c:40:3: error: field name not in record or union initializer .sec_head = LIST_HEAD_INIT(logic_pio_root_list[PIO_CPU_MMIO].sec_head), ^ lib/logic_pio.c:40:3: note: (near initialization for 'logic_pio_root_list') lib/logic_pio.c:41:3: error: field name not in record or union initializer .sec_min = PIO_SECT_MIN(PIO_CPU_MMIO), ^ lib/logic_pio.c:41:3: note: (near initialization for 'logic_pio_root_list') >> lib/logic_pio.c:41:14: error: implicit declaration of function 'PIO_SECT_MIN' [-Werror=implicit-function-declaration] .sec_min = PIO_SECT_MIN(PIO_CPU_MMIO), ^~~~~~~~~~~~ lib/logic_pio.c:42:3: error: field name not in record or union initializer .sec_max = PIO_SECT_MAX(PIO_INDIRECT - 1), ^ lib/logic_pio.c:42:3: note: (near initialization for 'logic_pio_root_list') >> lib/logic_pio.c:42:14: error: implicit declaration of function 'PIO_SECT_MAX' [-Werror=implicit-function-declaration] .sec_max = PIO_SECT_MAX(PIO_INDIRECT - 1), ^~~~~~~~~~~~ lib/logic_pio.c:46:3: error: array index in initializer not of integer type [PIO_INDIRECT] = { ^~~~~~~~~~~~ lib/logic_pio.c:46:3: note: (near initialization for 'logic_pio_root_list') lib/logic_pio.c:47:3: error: field name not in record or union initializer .sec_head = LIST_HEAD_INIT(logic_pio_root_list[PIO_INDIRECT].sec_head), ^ lib/logic_pio.c:47:3: note: (near initialization for 'logic_pio_root_list') lib/logic_pio.c:48:3: error: field name not in record or union initializer .sec_min = PIO_SECT_MIN(PIO_INDIRECT), ^ lib/logic_pio.c:48:3: note: (near initialization for 'logic_pio_root_list') lib/logic_pio.c:49:3: error: field name not in record or union initializer .sec_max = PIO_SECT_MAX(PIO_INDIRECT), ^ lib/logic_pio.c:49:3: note: (near initialization for 'logic_pio_root_list') In file included from include/linux/list.h:8:0, from include/linux/kobject.h:20, from include/linux/of.h:21, from lib/logic_pio.c:18: lib/logic_pio.c: In function 'logic_pio_find_range_byaddr': >> include/linux/rculist.h:351:49: error: dereferencing pointer to incomplete type 'struct logic_pio_hwaddr' for (pos = list_entry_rcu((head)->next, typeof(*pos), member); \ include/linux/kernel.h:852:18: note: in definition of macro 'container_of' const typeof( ((type *)0)->member ) *__mptr = (ptr); \ ^~~~ >> include/linux/rculist.h:351:13: note: in expansion of macro 'list_entry_rcu' for (pos = list_entry_rcu((head)->next, typeof(*pos), member); \ ^~~~~~~~~~~~~~ >> lib/logic_pio.c:77:2: note: in expansion of macro 'list_for_each_entry_rcu' list_for_each_entry_rcu(range, &io_range_list, list) { ^~~~~~~~~~~~~~~~~~~~~~~ include/linux/kernel.h:852:48: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types] const typeof( ((type *)0)->member ) *__mptr = (ptr); \ ^ >> include/linux/rculist.h:277:2: note: in expansion of macro 'container_of' container_of(lockless_dereference(ptr), type, member) ^~~~~~~~~~~~ >> include/linux/rculist.h:351:13: note: in expansion of macro 'list_entry_rcu' for (pos = list_entry_rcu((head)->next, typeof(*pos), member); \ ^~~~~~~~~~~~~~ >> lib/logic_pio.c:77:2: note: in expansion of macro 'list_for_each_entry_rcu' list_for_each_entry_rcu(range, &io_range_list, list) { ^~~~~~~~~~~~~~~~~~~~~~~ >> include/linux/kernel.h:852:48: warning: initialization makes pointer from integer without a cast [-Wint-conversion] const typeof( ((type *)0)->member ) *__mptr = (ptr); \ ^ >> include/linux/rculist.h:277:2: note: in expansion of macro 'container_of' container_of(lockless_dereference(ptr), type, member) ^~~~~~~~~~~~ include/linux/rculist.h:353:9: note: in expansion of macro 'list_entry_rcu' pos = list_entry_rcu(pos->member.next, typeof(*pos), member)) ^~~~~~~~~~~~~~ >> lib/logic_pio.c:77:2: note: in expansion of macro 'list_for_each_entry_rcu' list_for_each_entry_rcu(range, &io_range_list, list) { ^~~~~~~~~~~~~~~~~~~~~~~ lib/logic_pio.c: In function 'logic_pio_alloc_range': >> lib/logic_pio.c:109:19: error: dereferencing pointer to incomplete type 'struct logic_pio_root' idle_start = root->sec_min; ^~ In file included from include/linux/list.h:8:0, from include/linux/kobject.h:20, from include/linux/of.h:21, from lib/logic_pio.c:18: >> include/linux/rculist.h:351:49: error: dereferencing pointer to incomplete type 'struct logic_pio_sect' for (pos = list_entry_rcu((head)->next, typeof(*pos), member); \ include/linux/kernel.h:852:18: note: in definition of macro 'container_of' const typeof( ((type *)0)->member ) *__mptr = (ptr); \ ^~~~ >> include/linux/rculist.h:351:13: note: in expansion of macro 'list_entry_rcu' for (pos = list_entry_rcu((head)->next, typeof(*pos), member); \ ^~~~~~~~~~~~~~ lib/logic_pio.c:111:2: note: in expansion of macro 'list_for_each_entry_rcu' list_for_each_entry_rcu(entry, &root->sec_head, list) { ^~~~~~~~~~~~~~~~~~~~~~~ >> include/linux/kernel.h:852:48: warning: initialization makes pointer from integer without a cast [-Wint-conversion] const typeof( ((type *)0)->member ) *__mptr = (ptr); \ ^ vim +/PIO_MAX_SECT +32 lib/logic_pio.c 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program. If not, see <http://www.gnu.org/licenses/>. 16 */ 17 > 18 #include <linux/of.h> 19 #include <linux/io.h> 20 #include <linux/mm.h> 21 #include <linux/rculist.h> 22 #include <linux/sizes.h> 23 #include <linux/slab.h> 24 25 /* The unique hardware address list. */ 26 static LIST_HEAD(io_range_list); 27 static DEFINE_MUTEX(io_range_mutex); 28 29 /* 30 * These are the lists for PIO. The highest PIO_SECT_BITS of PIO is the index. 31 */ > 32 static struct logic_pio_root logic_pio_root_list[PIO_MAX_SECT] = { 33 #ifdef CONFIG_INDIRECT_PIO 34 /* 35 * At this moment, assign all the other logic PIO space to MMIO. 36 * If more elements added, please adjust the ending index and .sec_max; 37 * Please keep MMIO element started from index ZERO. 38 */ > 39 [PIO_CPU_MMIO ... PIO_INDIRECT - 1] = { > 40 .sec_head = LIST_HEAD_INIT(logic_pio_root_list[PIO_CPU_MMIO].sec_head), > 41 .sec_min = PIO_SECT_MIN(PIO_CPU_MMIO), > 42 .sec_max = PIO_SECT_MAX(PIO_INDIRECT - 1), 43 }, 44 45 /* The last element */ 46 [PIO_INDIRECT] = { 47 .sec_head = LIST_HEAD_INIT(logic_pio_root_list[PIO_INDIRECT].sec_head), 48 .sec_min = PIO_SECT_MIN(PIO_INDIRECT), 49 .sec_max = PIO_SECT_MAX(PIO_INDIRECT), 50 }, 51 #else 52 [PIO_CPU_MMIO] = { 53 .sec_head = LIST_HEAD_INIT(logic_pio_root_list[PIO_CPU_MMIO].sec_head), 54 .sec_min = PIO_SECT_MIN(PIO_CPU_MMIO), 55 .sec_max = PIO_SECT_MAX(PIO_CPU_MMIO), 56 }, 57 58 #endif 59 }; 60 61 /* 62 * Search a io_range registered which match the fwnode and addr. 63 * 64 * @fwnode: the host fwnode which must be valid; 65 * @start: the start hardware address of this search; 66 * @end: the end hardware address of this search. can be equal to @start; 67 * 68 * return NULL when there is no matched node; IS_ERR() means ERROR; 69 * valid virtual address represent a matched node was found. 70 */ 71 static struct logic_pio_hwaddr * 72 logic_pio_find_range_byaddr(struct fwnode_handle *fwnode, 73 resource_size_t start, resource_size_t end) 74 { 75 struct logic_pio_hwaddr *range; 76 > 77 list_for_each_entry_rcu(range, &io_range_list, list) { 78 if (!range->pio_peer) { 79 pr_warn("Invalid cpu addr node(%pa) in list!\n", 80 &range->hw_start); 81 continue; 82 } 83 if (range->fwnode != fwnode) 84 continue; 85 /* without any overlap with current range */ 86 if (start >= range->hw_start + range->size || 87 end < range->hw_start) 88 continue; 89 /* overlap is not supported now. */ 90 if (start < range->hw_start || 91 end >= range->hw_start + range->size) 92 return ERR_PTR(-EBUSY); 93 /* had been registered. */ 94 return range; 95 } 96 97 return NULL; 98 } 99 100 101 static int logic_pio_alloc_range(struct logic_pio_root *root, 102 resource_size_t size, unsigned long align, 103 struct list_head **prev, resource_size_t *pio_alloc) 104 { 105 struct logic_pio_sect *entry; 106 resource_size_t tmp_start; 107 resource_size_t idle_start, idle_end; 108 > 109 idle_start = root->sec_min; 110 *prev = &root->sec_head; 111 list_for_each_entry_rcu(entry, &root->sec_head, list) { 112 if (!entry->hwpeer || 113 idle_start > entry->io_start) { 114 WARN(1, "skip an invalid io range during traversal!\n"); 115 goto nextentry; 116 } 117 /* set the end edge. */ 118 if (idle_start == entry->io_start) { 119 struct logic_pio_sect *next; 120 121 idle_start = entry->io_start + entry->hwpeer->size; > 122 next = list_next_or_null_rcu(&root->sec_head, > 123 &entry->list, struct logic_pio_sect, list); 124 if (next) { 125 entry = next; 126 } else { 127 *prev = &entry->list; 128 break; 129 } 130 } 131 idle_end = entry->io_start - 1; 132 133 /* contiguous range... */ 134 if (idle_start > idle_end) 135 goto nextentry; 136 137 tmp_start = idle_start; 138 idle_start = ALIGN(idle_start, align); 139 if (idle_start >= tmp_start && 140 idle_start + size <= idle_end) { 141 *prev = &entry->list; 142 *pio_alloc = idle_start; 143 return 0; 144 } 145 146 nextentry: 147 idle_start = entry->io_start + entry->hwpeer->size; 148 *prev = &entry->list; 149 } 150 /* check the last free gap... */ 151 idle_end = root->sec_max; 152 153 tmp_start = idle_start; 154 idle_start = ALIGN(idle_start, align); 155 if (idle_start >= tmp_start && 156 idle_start + size <= idle_end) { 157 *pio_alloc = idle_start; 158 return 0; 159 } 160 161 return -EBUSY; 162 } 163 164 /* 165 * register a io range node in the io range list. 166 * 167 * @newrange: pointer to the io range to be registered. 168 * 169 * return 'newrange' when success, ERR_VALUE() is for failures. 170 * specially, return a valid pointer which is not equal to 'newrange' when 171 * the io range had been registered before. 172 */ 173 struct logic_pio_hwaddr 174 *logic_pio_register_range(struct logic_pio_hwaddr *newrange, 175 unsigned long align) 176 { 177 struct logic_pio_hwaddr *range; 178 struct logic_pio_sect *newsect; 179 resource_size_t pio_alloc; 180 struct list_head *prev, *hwprev; 181 unsigned long sect_id; 182 int err; 183 184 if (!newrange || !newrange->fwnode || !newrange->size) 185 return ERR_PTR(-EINVAL); 186 187 sect_id = newrange->flags; 188 if (sect_id >= PIO_MAX_SECT) 189 return ERR_PTR(-EINVAL); 190 191 mutex_lock(&io_range_mutex); 192 range = logic_pio_find_range_byaddr(newrange->fwnode, 193 newrange->hw_start, 194 newrange->hw_start + newrange->size - 1); 195 if (range) { 196 if (!IS_ERR(range)) 197 pr_info("the request IO range had been registered!\n"); 198 else 199 pr_err("registering IO[%pa - sz%pa) got failed!\n", 200 &newrange->hw_start, &newrange->size); 201 mutex_unlock(&io_range_mutex); 202 return range; 203 } 204 205 err = logic_pio_alloc_range(&logic_pio_root_list[sect_id], 206 newrange->size, align, &prev, &pio_alloc); 207 if (err) { 208 pr_err("can't find free %pa logical IO range!\n", 209 &newrange->size); 210 goto exitproc; 211 } 212 213 if (prev == &logic_pio_root_list[sect_id].sec_head) { 214 hwprev = &io_range_list; 215 } else { > 216 newsect = to_pio_sect(prev); > 217 hwprev = &newsect->hwpeer->list; 218 } 219 220 newsect = kzalloc(sizeof(*newsect), GFP_KERNEL); --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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