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Bluetooth: Avoid a couple dozen -Wflex-array-member-not-at-end warnings

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-Wflex-array-member-not-at-end was introduced in GCC-14, and we are
getting ready to enable it, globally.

Use the __struct_group() helper to fix 31 instances of the following
type of warnings:

30 net/bluetooth/mgmt_config.c:16:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
1 net/bluetooth/mgmt_config.c:22:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This commit is contained in:
Gustavo A. R. Silva
2025-09-09 14:13:35 +02:00
committed by Luiz Augusto von Dentz
parent 03ddb4ac25
commit be812ace03
2 changed files with 9 additions and 4 deletions
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9
include/net/bluetooth/mgmt.h
View File

@@ -53,10 +53,15 @@ struct mgmt_hdr {
} __packed;
struct mgmt_tlv {
__le16 type;
__u8 length;
/* New members MUST be added within the __struct_group() macro below. */
__struct_group(mgmt_tlv_hdr, __hdr, __packed,
__le16 type;
__u8 length;
);
__u8 value[];
} __packed;
static_assert(offsetof(struct mgmt_tlv, value) == sizeof(struct mgmt_tlv_hdr),
"struct member likely outside of __struct_group()");
struct mgmt_addr_info {
bdaddr_t bdaddr;

4
net/bluetooth/mgmt_config.c
View File

@@ -13,13 +13,13 @@
#define HDEV_PARAM_U16(_param_name_) \
struct {\
struct mgmt_tlv entry; \
struct mgmt_tlv_hdr entry; \
__le16 value; \
} __packed _param_name_
#define HDEV_PARAM_U8(_param_name_) \
struct {\
struct mgmt_tlv entry; \
struct mgmt_tlv_hdr entry; \
__u8 value; \
} __packed _param_name_