Messages in this thread Patch in this message | | | Date | Tue, 03 Feb 2015 05:14:38 +0800 | From | Chen Gang S <> | Subject | [PATCH v2] net: bluetooth: hci_sock: Use 'const void *' instead of 'void *' for 2nd parameter of hci_test_bit() |
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hci_test_bit() does not modify 2nd parameter, so it is better to let it be constant, or may cause build warning. The related warning (with allmodconfig under xtensa):
net/bluetooth/hci_sock.c: In function 'hci_sock_sendmsg': net/bluetooth/hci_sock.c:955:8: warning: passing argument 2 of 'hci_test_bit' discards 'const' qualifier from pointer target type [-Wdiscarded-array-qualifiers] &hci_sec_filter.ocf_mask[ogf])) && ^ net/bluetooth/hci_sock.c:49:19: note: expected 'void *' but argument is of type 'const __u32 (*)[4] {aka const unsigned int (*)[4]}' static inline int hci_test_bit(int nr, void *addr) ^
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> --- net/bluetooth/hci_sock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index 80c5a79..858b53a 100644 --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -46,7 +46,7 @@ struct hci_pinfo { unsigned short channel; }; -static inline int hci_test_bit(int nr, void *addr) +static inline int hci_test_bit(int nr, const void *addr) { return *((__u32 *) addr + (nr >> 5)) & ((__u32) 1 << (nr & 31)); } -- 1.9.3
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