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authorGoffredo Baroncelli <kreijack@inwind.it>2015-05-30 11:00:26 +0200
committerJiri Kosina <jkosina@suse.cz>2015-06-01 14:33:35 +0200
commit04fba7864ffcceae8a5f78d88ae1fd8d682a5123 (patch)
treebd8d85426a6e9cc0a8f67165b0ffa4d1325731bf /drivers
parentf4e1eb966256b15335054fac7b304f14e4965b5d (diff)
downloadlinux-04fba7864ffcceae8a5f78d88ae1fd8d682a5123.tar.bz2
HID: Export hid_field_extract()
Rename the function extract() to hid_field_extract(), make it external linkage to allow the use from other modules. Suggested-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Goffredo Baroncelli <kreijack@inwind.it> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/hid/hid-core.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 722a925795a2..fe33f9e9aebc 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1061,13 +1061,13 @@ static u32 s32ton(__s32 value, unsigned n)
* Search linux-kernel and linux-usb-devel archives for "hid-core extract".
*/
-static __u32 extract(const struct hid_device *hid, __u8 *report,
+__u32 hid_field_extract(const struct hid_device *hid, __u8 *report,
unsigned offset, unsigned n)
{
u64 x;
if (n > 32)
- hid_warn(hid, "extract() called with n (%d) > 32! (%s)\n",
+ hid_warn(hid, "hid_field_extract() called with n (%d) > 32! (%s)\n",
n, current->comm);
report += offset >> 3; /* adjust byte index */
@@ -1076,6 +1076,7 @@ static __u32 extract(const struct hid_device *hid, __u8 *report,
x = (x >> offset) & ((1ULL << n) - 1); /* extract bit field */
return (u32) x;
}
+EXPORT_SYMBOL_GPL(hid_field_extract);
/*
* "implement" : set bits in a little endian bit stream.
@@ -1221,9 +1222,9 @@ static void hid_input_field(struct hid_device *hid, struct hid_field *field,
for (n = 0; n < count; n++) {
value[n] = min < 0 ?
- snto32(extract(hid, data, offset + n * size, size),
- size) :
- extract(hid, data, offset + n * size, size);
+ snto32(hid_field_extract(hid, data, offset + n * size,
+ size), size) :
+ hid_field_extract(hid, data, offset + n * size, size);
/* Ignore report if ErrorRollOver */
if (!(field->flags & HID_MAIN_ITEM_VARIABLE) &&