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wifi: rtw89: use flexible array member in rtw89_btc_btf_tlv

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struct rtw89_btc_btf_tlv contains a one-byte member that is intended as a
flexible array:

In function 'fortify_memcpy_chk',
    inlined from '_append_tdma' at drivers/net/wireless/realtek/rtw89/coex.c:1579:3:
include/linux/fortify-string.h:583:25: error: call to '__write_overflow_field' declared with attribute warning: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Werror=attribute-warning]
  583 |                         __write_overflow_field(p_size_field, size);
      |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Make this actually use a flexible array to let the compiler understand.

Signed-off-by: Arnd Bergmann <[email protected]>
Reviewed-by: Ping-Ke Shih <[email protected]>
Reviewed-by: Gustavo A. R. Silva <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
This commit is contained in:
Arnd Bergmann
2023-05-25 19:14:15 +03:00
committed by Kalle Valo
parent 56fc4d4827
commit 47e612268e
1 changed files with 1 additions and 1 deletions
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drivers/net/wireless/realtek/rtw89/coex.c
+1 -1
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@@ -206,7 +206,7 @@ static const struct rtw89_btc_ver rtw89_btc_ver_defs[] = {
struct rtw89_btc_btf_tlv {
u8 type;
u8 len;
u8 val[1];
u8 val[];
} __packed;
enum btc_btf_set_report_en {