[ablock84-btrfs:btrfs-far 19/20] fs/far/far-path.c:42:2: error: implicit declaration of function 'IS_ERR'
From: kbuild test robot <hidden>
Date: 2012-11-06 20:15:38
tree: git://github.com/ablock84/linux-btrfs.git btrfs-far
head: f9a5bb450a8cc7aa5fd4f11d0306b3f48cf2771d
commit: 29aefeaaf482ab396ff53c2bbf5c35ce237b91c0 [19/20] fs: add libfarstream support
config: make ARCH=s390 allmodconfig
All error/warnings:
In file included from include/linux/byteorder/big_endian.h:4:0,
from arch/s390/include/uapi/asm/byteorder.h:4,
from include/asm-generic/bitops/le.h:5,
from arch/s390/include/asm/bitops.h:829,
from include/linux/bitops.h:22,
from include/linux/kernel.h:10,
from arch/s390/include/asm/bug.h:4,
from include/linux/bug.h:4,
from include/linux/thread_info.h:11,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:50,
from include/linux/vmalloc.h:4,
from fs/far/far-mem.h:23,
from fs/far/far-attr.c:21:
include/uapi/linux/byteorder/big_endian.h:14:0: warning: "__constant_htonl" redefined [enabled by default]
In file included from include/linux/byteorder/little_endian.h:4:0,
from fs/far/far-attr.h:30,
from fs/far/far-attr.c:19:
include/uapi/linux/byteorder/little_endian.h:14:0: note: this is the location of the previous definition
In file included from include/linux/byteorder/big_endian.h:4:0,
from arch/s390/include/uapi/asm/byteorder.h:4,
from include/asm-generic/bitops/le.h:5,
from arch/s390/include/asm/bitops.h:829,
from include/linux/bitops.h:22,
from include/linux/kernel.h:10,
from arch/s390/include/asm/bug.h:4,
from include/linux/bug.h:4,
from include/linux/thread_info.h:11,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:50,
from include/linux/vmalloc.h:4,
from fs/far/far-mem.h:23,
from fs/far/far-attr.c:21:
include/uapi/linux/byteorder/big_endian.h:15:0: warning: "__constant_ntohl" redefined [enabled by default]
In file included from include/linux/byteorder/little_endian.h:4:0,
from fs/far/far-attr.h:30,
from fs/far/far-attr.c:19:
include/uapi/linux/byteorder/little_endian.h:15:0: note: this is the location of the previous definition
In file included from include/linux/byteorder/big_endian.h:4:0,
from arch/s390/include/uapi/asm/byteorder.h:4,
from include/asm-generic/bitops/le.h:5,
from arch/s390/include/asm/bitops.h:829,
from include/linux/bitops.h:22,
from include/linux/kernel.h:10,
from arch/s390/include/asm/bug.h:4,
from include/linux/bug.h:4,
from include/linux/thread_info.h:11,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:50,
from include/linux/vmalloc.h:4,
from fs/far/far-mem.h:23,
from fs/far/far-attr.c:21:
include/uapi/linux/byteorder/big_endian.h:16:0: warning: "__constant_htons" redefined [enabled by default]
In file included from include/linux/byteorder/little_endian.h:4:0,
from fs/far/far-attr.h:30,
from fs/far/far-attr.c:19:
include/uapi/linux/byteorder/little_endian.h:16:0: note: this is the location of the previous definition
In file included from include/linux/byteorder/big_endian.h:4:0,
from arch/s390/include/uapi/asm/byteorder.h:4,
from include/asm-generic/bitops/le.h:5,
from arch/s390/include/asm/bitops.h:829,
from include/linux/bitops.h:22,
from include/linux/kernel.h:10,
from arch/s390/include/asm/bug.h:4,
from include/linux/bug.h:4,
from include/linux/thread_info.h:11,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:50,
from include/linux/vmalloc.h:4,
from fs/far/far-mem.h:23,
from fs/far/far-attr.c:21:
include/uapi/linux/byteorder/big_endian.h:17:0: warning: "__constant_ntohs" redefined [enabled by default]
In file included from include/linux/byteorder/little_endian.h:4:0,
from fs/far/far-attr.h:30,
from fs/far/far-attr.c:19:
include/uapi/linux/byteorder/little_endian.h:17:0: note: this is the location of the previous definition
In file included from include/linux/byteorder/big_endian.h:4:0,
from arch/s390/include/uapi/asm/byteorder.h:4,
from include/asm-generic/bitops/le.h:5,
from arch/s390/include/asm/bitops.h:829,
from include/linux/bitops.h:22,
from include/linux/kernel.h:10,
from arch/s390/include/asm/bug.h:4,
from include/linux/bug.h:4,
from include/linux/thread_info.h:11,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:50,
from include/linux/vmalloc.h:4,
from fs/far/far-mem.h:23,
from fs/far/far-attr.c:21:
include/uapi/linux/byteorder/big_endian.h:18:0: warning: "__constant_cpu_to_le64" redefined [enabled by default]
In file included from include/linux/byteorder/little_endian.h:4:0,
from fs/far/far-attr.h:30,
from fs/far/far-attr.c:19:
include/uapi/linux/byteorder/little_endian.h:18:0: note: this is the location of the previous definition
In file included from include/linux/byteorder/big_endian.h:4:0,
from arch/s390/include/uapi/asm/byteorder.h:4,
from include/asm-generic/bitops/le.h:5,
from arch/s390/include/asm/bitops.h:829,
from include/linux/bitops.h:22,
from include/linux/kernel.h:10,
from arch/s390/include/asm/bug.h:4,
from include/linux/bug.h:4,
from include/linux/thread_info.h:11,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:50,
from include/linux/vmalloc.h:4,
from fs/far/far-mem.h:23,
from fs/far/far-attr.c:21:
include/uapi/linux/byteorder/big_endian.h:19:0: warning: "__constant_le64_to_cpu" redefined [enabled by default]
In file included from include/linux/byteorder/little_endian.h:4:0,
from fs/far/far-attr.h:30,
from fs/far/far-attr.c:19:
include/uapi/linux/byteorder/little_endian.h:19:0: note: this is the location of the previous definition
In file included from include/linux/byteorder/big_endian.h:4:0,
from arch/s390/include/uapi/asm/byteorder.h:4,
from include/asm-generic/bitops/le.h:5,
from arch/s390/include/asm/bitops.h:829,
from include/linux/bitops.h:22,
from include/linux/kernel.h:10,
from arch/s390/include/asm/bug.h:4,
from include/linux/bug.h:4,
from include/linux/thread_info.h:11,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:50,
from include/linux/vmalloc.h:4,
from fs/far/far-mem.h:23,
from fs/far/far-attr.c:21:
include/uapi/linux/byteorder/big_endian.h:20:0: warning: "__constant_cpu_to_le32" redefined [enabled by default]
In file included from include/linux/byteorder/little_endian.h:4:0,
from fs/far/far-attr.h:30,
from fs/far/far-attr.c:19:
include/uapi/linux/byteorder/little_endian.h:20:0: note: this is the location of the previous definition
In file included from include/linux/byteorder/big_endian.h:4:0,
from arch/s390/include/uapi/asm/byteorder.h:4,
from include/asm-generic/bitops/le.h:5,
from arch/s390/include/asm/bitops.h:829,
from include/linux/bitops.h:22,
from include/linux/kernel.h:10,
from arch/s390/include/asm/bug.h:4,
from include/linux/bug.h:4,
from include/linux/thread_info.h:11,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:50,
from include/linux/vmalloc.h:4,
from fs/far/far-mem.h:23,
from fs/far/far-attr.c:21:
include/uapi/linux/byteorder/big_endian.h:21:0: warning: "__constant_le32_to_cpu" redefined [enabled by default]
In file included from include/linux/byteorder/little_endian.h:4:0,
from fs/far/far-attr.h:30,
from fs/far/far-attr.c:19:
include/uapi/linux/byteorder/little_endian.h:21:0: note: this is the location of the previous definition
In file included from include/linux/byteorder/big_endian.h:4:0,
from arch/s390/include/uapi/asm/byteorder.h:4,
from include/asm-generic/bitops/le.h:5,
from arch/s390/include/asm/bitops.h:829,
from include/linux/bitops.h:22,
from include/linux/kernel.h:10,
from arch/s390/include/asm/bug.h:4,
from include/linux/bug.h:4,
from include/linux/thread_info.h:11,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:50,
from include/linux/vmalloc.h:4,
from fs/far/far-mem.h:23,
from fs/far/far-attr.c:21:
include/uapi/linux/byteorder/big_endian.h:22:0: warning: "__constant_cpu_to_le16" redefined [enabled by default]
In file included from include/linux/byteorder/little_endian.h:4:0,
from fs/far/far-attr.h:30,
from fs/far/far-attr.c:19:
include/uapi/linux/byteorder/little_endian.h:22:0: note: this is the location of the previous definition
In file included from include/linux/byteorder/big_endian.h:4:0,
from arch/s390/include/uapi/asm/byteorder.h:4,
from include/asm-generic/bitops/le.h:5,
from arch/s390/include/asm/bitops.h:829,
from include/linux/bitops.h:22,
from include/linux/kernel.h:10,
from arch/s390/include/asm/bug.h:4,
from include/linux/bug.h:4,
from include/linux/thread_info.h:11,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:50,
from include/linux/vmalloc.h:4,
from fs/far/far-mem.h:23,
from fs/far/far-attr.c:21:
include/uapi/linux/byteorder/big_endian.h:23:0: warning: "__constant_le16_to_cpu" redefined [enabled by default]
In file included from include/linux/byteorder/little_endian.h:4:0,
from fs/far/far-attr.h:30,
from fs/far/far-attr.c:19:
include/uapi/linux/byteorder/little_endian.h:23:0: note: this is the location of the previous definition
In file included from include/linux/byteorder/big_endian.h:4:0,
from arch/s390/include/uapi/asm/byteorder.h:4,
from include/asm-generic/bitops/le.h:5,
from arch/s390/include/asm/bitops.h:829,
from include/linux/bitops.h:22,
from include/linux/kernel.h:10,
from arch/s390/include/asm/bug.h:4,
from include/linux/bug.h:4,
from include/linux/thread_info.h:11,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:50,
from include/linux/vmalloc.h:4,
from fs/far/far-mem.h:23,
from fs/far/far-attr.c:21:
include/uapi/linux/byteorder/big_endian.h:24:0: warning: "__constant_cpu_to_be64" redefined [enabled by default]
In file included from include/linux/byteorder/little_endian.h:4:0,
from fs/far/far-attr.h:30,
from fs/far/far-attr.c:19:
include/uapi/linux/byteorder/little_endian.h:24:0: note: this is the location of the previous definition
In file included from include/linux/byteorder/big_endian.h:4:0,
from arch/s390/include/uapi/asm/byteorder.h:4,
from include/asm-generic/bitops/le.h:5,
from arch/s390/include/asm/bitops.h:829,
from include/linux/bitops.h:22,
from include/linux/kernel.h:10,
from arch/s390/include/asm/bug.h:4,
from include/linux/bug.h:4,
from include/linux/thread_info.h:11,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:50,
from include/linux/vmalloc.h:4,
from fs/far/far-mem.h:23,
from fs/far/far-attr.c:21:
include/uapi/linux/byteorder/big_endian.h:25:0: warning: "__constant_be64_to_cpu" redefined [enabled by default]
In file included from include/linux/byteorder/little_endian.h:4:0,
from fs/far/far-attr.h:30,
from fs/far/far-attr.c:19:
include/uapi/linux/byteorder/little_endian.h:25:0: note: this is the location of the previous definition
In file included from include/linux/byteorder/big_endian.h:4:0,
from arch/s390/include/uapi/asm/byteorder.h:4,
from include/asm-generic/bitops/le.h:5,
from arch/s390/include/asm/bitops.h:829,
from include/linux/bitops.h:22,
from include/linux/kernel.h:10,
from arch/s390/include/asm/bug.h:4,
from include/linux/bug.h:4,
from include/linux/thread_info.h:11,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:50,
from include/linux/vmalloc.h:4,
from fs/far/far-mem.h:23,
from fs/far/far-attr.c:21:
include/uapi/linux/byteorder/big_endian.h:26:0: warning: "__constant_cpu_to_be32" redefined [enabled by default]
In file included from include/linux/byteorder/little_endian.h:4:0,
from fs/far/far-attr.h:30,
from fs/far/far-attr.c:19:
include/uapi/linux/byteorder/little_endian.h:26:0: note: this is the location of the previous definition
In file included from include/linux/byteorder/big_endian.h:4:0,
from arch/s390/include/uapi/asm/byteorder.h:4,
from include/asm-generic/bitops/le.h:5,
from arch/s390/include/asm/bitops.h:829,
from include/linux/bitops.h:22,
from include/linux/kernel.h:10,
from arch/s390/include/asm/bug.h:4,
from include/linux/bug.h:4,
from include/linux/thread_info.h:11,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:50,
from include/linux/vmalloc.h:4,
from fs/far/far-mem.h:23,
from fs/far/far-attr.c:21:
include/uapi/linux/byteorder/big_endian.h:27:0: warning: "__constant_be32_to_cpu" redefined [enabled by default]
In file included from include/linux/byteorder/little_endian.h:4:0,
from fs/far/far-attr.h:30,
from fs/far/far-attr.c:19:
include/uapi/linux/byteorder/little_endian.h:27:0: note: this is the location of the previous definition
In file included from include/linux/byteorder/big_endian.h:4:0,
from arch/s390/include/uapi/asm/byteorder.h:4,
from include/asm-generic/bitops/le.h:5,
from arch/s390/include/asm/bitops.h:829,
from include/linux/bitops.h:22,
from include/linux/kernel.h:10,
from arch/s390/include/asm/bug.h:4,
from include/linux/bug.h:4,
from include/linux/thread_info.h:11,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:50,
from include/linux/vmalloc.h:4,
from fs/far/far-mem.h:23,
from fs/far/far-attr.c:21:
include/uapi/linux/byteorder/big_endian.h:28:0: warning: "__constant_cpu_to_be16" redefined [enabled by default]
In file included from include/linux/byteorder/little_endian.h:4:0,
from fs/far/far-attr.h:30,
from fs/far/far-attr.c:19:
include/uapi/linux/byteorder/little_endian.h:28:0: note: this is the location of the previous definition
In file included from include/linux/byteorder/big_endian.h:4:0,
from arch/s390/include/uapi/asm/byteorder.h:4,
from include/asm-generic/bitops/le.h:5,
from arch/s390/include/asm/bitops.h:829,
from include/linux/bitops.h:22,
from include/linux/kernel.h:10,
from arch/s390/include/asm/bug.h:4,
from include/linux/bug.h:4,
from include/linux/thread_info.h:11,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:50,
from include/linux/vmalloc.h:4,
from fs/far/far-mem.h:23,
from fs/far/far-attr.c:21:
include/uapi/linux/byteorder/big_endian.h:29:0: warning: "__constant_be16_to_cpu" redefined [enabled by default]
In file included from include/linux/byteorder/little_endian.h:4:0,
from fs/far/far-attr.h:30,
from fs/far/far-attr.c:19:
include/uapi/linux/byteorder/little_endian.h:29:0: note: this is the location of the previous definition
In file included from include/linux/byteorder/big_endian.h:4:0,
from arch/s390/include/uapi/asm/byteorder.h:4,
from include/asm-generic/bitops/le.h:5,
from arch/s390/include/asm/bitops.h:829,
from include/linux/bitops.h:22,
from include/linux/kernel.h:10,
from arch/s390/include/asm/bug.h:4,
from include/linux/bug.h:4,
from include/linux/thread_info.h:11,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:50,
from include/linux/vmalloc.h:4,
from fs/far/far-mem.h:23,
from fs/far/far-attr.c:21:
include/uapi/linux/byteorder/big_endian.h:30:0: warning: "__cpu_to_le64" redefined [enabled by default]
In file included from include/linux/byteorder/little_endian.h:4:0,
from fs/far/far-attr.h:30,
from fs/far/far-attr.c:19:
include/uapi/linux/byteorder/little_endian.h:30:0: note: this is the location of the previous definition
In file included from include/linux/byteorder/big_endian.h:4:0,
from arch/s390/include/uapi/asm/byteorder.h:4,
from include/asm-generic/bitops/le.h:5,
from arch/s390/include/asm/bitops.h:829,
from include/linux/bitops.h:22,
from include/linux/kernel.h:10,
from arch/s390/include/asm/bug.h:4,
from include/linux/bug.h:4,
from include/linux/thread_info.h:11,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:50,
from include/linux/vmalloc.h:4,
from fs/far/far-mem.h:23,
from fs/far/far-attr.c:21:
include/uapi/linux/byteorder/big_endian.h:31:0: warning: "__le64_to_cpu" redefined [enabled by default]
In file included from include/linux/byteorder/little_endian.h:4:0,
from fs/far/far-attr.h:30,
from fs/far/far-attr.c:19:
include/uapi/linux/byteorder/little_endian.h:31:0: note: this is the location of the previous definition
In file included from include/linux/byteorder/big_endian.h:4:0,
from arch/s390/include/uapi/asm/byteorder.h:4,
from include/asm-generic/bitops/le.h:5,
from arch/s390/include/asm/bitops.h:829,
from include/linux/bitops.h:22,
from include/linux/kernel.h:10,
from arch/s390/include/asm/bug.h:4,
from include/linux/bug.h:4,
from include/linux/thread_info.h:11,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:50,
from include/linux/vmalloc.h:4,
from fs/far/far-mem.h:23,
from fs/far/far-attr.c:21:
include/uapi/linux/byteorder/big_endian.h:32:0: warning: "__cpu_to_le32" redefined [enabled by default]
In file included from include/linux/byteorder/little_endian.h:4:0,
from fs/far/far-attr.h:30,
from fs/far/far-attr.c:19:
include/uapi/linux/byteorder/little_endian.h:32:0: note: this is the location of the previous definition
In file included from include/linux/byteorder/big_endian.h:4:0,
from arch/s390/include/uapi/asm/byteorder.h:4,
from include/asm-generic/bitops/le.h:5,
from arch/s390/include/asm/bitops.h:829,
from include/linux/bitops.h:22,
from include/linux/kernel.h:10,
from arch/s390/include/asm/bug.h:4,
from include/linux/bug.h:4,
from include/linux/thread_info.h:11,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:50,
from include/linux/vmalloc.h:4,
from fs/far/far-mem.h:23,
from fs/far/far-attr.c:21:
include/uapi/linux/byteorder/big_endian.h:33:0: warning: "__le32_to_cpu" redefined [enabled by default]
In file included from include/linux/byteorder/little_endian.h:4:0,
from fs/far/far-attr.h:30,
from fs/far/far-attr.c:19:
include/uapi/linux/byteorder/little_endian.h:33:0: note: this is the location of the previous definition
In file included from include/linux/byteorder/big_endian.h:4:0,
from arch/s390/include/uapi/asm/byteorder.h:4,
from include/asm-generic/bitops/le.h:5,
from arch/s390/include/asm/bitops.h:829,
from include/linux/bitops.h:22,
from include/linux/kernel.h:10,
from arch/s390/include/asm/bug.h:4,
from include/linux/bug.h:4,
from include/linux/thread_info.h:11,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:50,
from include/linux/vmalloc.h:4,
from fs/far/far-mem.h:23,
from fs/far/far-attr.c:21:
..
vim +42 +/IS_ERR fs/far/far-path.c
29aefeaa Alexander Block 2012-11-06 36 INIT_LIST_HEAD(&fp->elements);
29aefeaa Alexander Block 2012-11-06 37 return fp;
29aefeaa Alexander Block 2012-11-06 38 }
29aefeaa Alexander Block 2012-11-06 39
29aefeaa Alexander Block 2012-11-06 40 void far_path_free(struct far_path *fp)
29aefeaa Alexander Block 2012-11-06 41 {
29aefeaa Alexander Block 2012-11-06 @42 if (!fp || IS_ERR(fp))
29aefeaa Alexander Block 2012-11-06 43 return;
29aefeaa Alexander Block 2012-11-06 44 far_path_reset(fp);
29aefeaa Alexander Block 2012-11-06 45 far_free(fp);
29aefeaa Alexander Block 2012-11-06 46 }
29aefeaa Alexander Block 2012-11-06 47
29aefeaa Alexander Block 2012-11-06 48 void far_path_reset(struct far_path *fp)
29aefeaa Alexander Block 2012-11-06 49 {
29aefeaa Alexander Block 2012-11-06 50 struct far_path_element *e, *tmp;
29aefeaa Alexander Block 2012-11-06 51 list_for_each_entry_safe(e, tmp, &fp->elements, list) {
29aefeaa Alexander Block 2012-11-06 52 far_free(e);
29aefeaa Alexander Block 2012-11-06 53 }
29aefeaa Alexander Block 2012-11-06 54 INIT_LIST_HEAD(&fp->elements);
29aefeaa Alexander Block 2012-11-06 55 }
29aefeaa Alexander Block 2012-11-06 56
29aefeaa Alexander Block 2012-11-06 57
29aefeaa Alexander Block 2012-11-06 58 char *far_path_add_prepare(struct far_path *fp, enum far_path_element_type type, int name_len, int prepend)
29aefeaa Alexander Block 2012-11-06 59 {
29aefeaa Alexander Block 2012-11-06 60 struct far_path_element *e;
29aefeaa Alexander Block 2012-11-06 61
29aefeaa Alexander Block 2012-11-06 62 e = far_malloc(sizeof(*e) + name_len + 1);
29aefeaa Alexander Block 2012-11-06 63 if (!e)
29aefeaa Alexander Block 2012-11-06 64 return NULL;
29aefeaa Alexander Block 2012-11-06 65
29aefeaa Alexander Block 2012-11-06 66 e->len = name_len;
29aefeaa Alexander Block 2012-11-06 67 e->type = type;
29aefeaa Alexander Block 2012-11-06 68 e->name[0] = 0;
29aefeaa Alexander Block 2012-11-06 69 if (prepend)
29aefeaa Alexander Block 2012-11-06 70 list_add(&e->list, &fp->elements);
29aefeaa Alexander Block 2012-11-06 71 else
29aefeaa Alexander Block 2012-11-06 72 list_add_tail(&e->list, &fp->elements);
29aefeaa Alexander Block 2012-11-06 73 return e->name;
29aefeaa Alexander Block 2012-11-06 74 }
29aefeaa Alexander Block 2012-11-06 75
29aefeaa Alexander Block 2012-11-06 76 int far_path_add(struct far_path *fp, enum far_path_element_type type, const char *name, int name_len, int prepend)
29aefeaa Alexander Block 2012-11-06 77 {
29aefeaa Alexander Block 2012-11-06 78 char *buf;
29aefeaa Alexander Block 2012-11-06 79 if (name_len == -1)
29aefeaa Alexander Block 2012-11-06 80 name_len = strlen(name);
29aefeaa Alexander Block 2012-11-06 81 buf = far_path_add_prepare(fp, type, name_len, prepend);
29aefeaa Alexander Block 2012-11-06 82 if (!buf)
29aefeaa Alexander Block 2012-11-06 83 return -ENOMEM;
29aefeaa Alexander Block 2012-11-06 84 memcpy(buf, name, name_len);
29aefeaa Alexander Block 2012-11-06 85 buf[name_len] = 0;
29aefeaa Alexander Block 2012-11-06 86 return 0;
29aefeaa Alexander Block 2012-11-06 87 }
29aefeaa Alexander Block 2012-11-06 88
29aefeaa Alexander Block 2012-11-06 89 void far_path_remove_one(struct far_path *fp)
29aefeaa Alexander Block 2012-11-06 90 {
29aefeaa Alexander Block 2012-11-06 91 struct far_path_element *e;
29aefeaa Alexander Block 2012-11-06 92 if (list_empty(&fp->elements))
29aefeaa Alexander Block 2012-11-06 93 return;
29aefeaa Alexander Block 2012-11-06 94 e = list_entry(fp->elements.prev, struct far_path_element, list);
29aefeaa Alexander Block 2012-11-06 95 list_del(&e->list);
29aefeaa Alexander Block 2012-11-06 96 }
29aefeaa Alexander Block 2012-11-06 97
29aefeaa Alexander Block 2012-11-06 98 int far_path_copy(struct far_path *fp, struct far_path *from)
29aefeaa Alexander Block 2012-11-06 99 {
29aefeaa Alexander Block 2012-11-06 100 int ret;
29aefeaa Alexander Block 2012-11-06 101 struct far_path_element *e;
29aefeaa Alexander Block 2012-11-06 102 far_path_reset(fp);
29aefeaa Alexander Block 2012-11-06 103 list_for_each_entry(e, &from->elements, list) {
29aefeaa Alexander Block 2012-11-06 104 ret = far_path_add(fp, e->type, e->name, e->len, 0);
29aefeaa Alexander Block 2012-11-06 105 if (ret < 0)
29aefeaa Alexander Block 2012-11-06 106 return ret;
29aefeaa Alexander Block 2012-11-06 107 }
29aefeaa Alexander Block 2012-11-06 108 return 0;
29aefeaa Alexander Block 2012-11-06 109 }
29aefeaa Alexander Block 2012-11-06 110
29aefeaa Alexander Block 2012-11-06 111 struct far_path *far_path_clone(struct far_path *fp)
29aefeaa Alexander Block 2012-11-06 112 {
29aefeaa Alexander Block 2012-11-06 113 int ret;
29aefeaa Alexander Block 2012-11-06 114 struct far_path *c;
29aefeaa Alexander Block 2012-11-06 115 c = far_path_alloc();
29aefeaa Alexander Block 2012-11-06 116 if (!c)
29aefeaa Alexander Block 2012-11-06 117 return NULL;
29aefeaa Alexander Block 2012-11-06 118 ret = far_path_copy(c, fp);
29aefeaa Alexander Block 2012-11-06 119 if (ret < 0) {
29aefeaa Alexander Block 2012-11-06 120 far_path_free(c);
29aefeaa Alexander Block 2012-11-06 @121 return ERR_PTR(ret);
29aefeaa Alexander Block 2012-11-06 122 }
29aefeaa Alexander Block 2012-11-06 123
29aefeaa Alexander Block 2012-11-06 124 return c;
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0-DAY kernel build testing backend Open Source Technology Center
Fengguang Wu, Yuanhan Liu Intel Corporation