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authorArnd Bergmann <arnd@arndb.de>2017-10-05 14:05:24 +0200
committerKalle Valo <kvalo@codeaurora.org>2017-10-13 13:00:42 +0300
commita39644b235c1a45f84d6e16603cacb93740ed2d4 (patch)
tree599f4b68b7d5a39ed91b013b8c99fb980bf64b03 /drivers/net/wireless/broadcom
parentef81e8e9dbbb7f8348f3a62a6ab05e7aea33ea35 (diff)
rsi: fix integer overflow warning
gcc produces a harmless warning about a recently introduced signed integer overflow: drivers/net/wireless/rsi/rsi_91x_hal.c: In function 'rsi_prepare_mgmt_desc': include/uapi/linux/swab.h:13:15: error: integer overflow in expression [-Werror=overflow] (((__u16)(x) & (__u16)0x00ffU) << 8) | \ ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~ include/uapi/linux/swab.h:104:2: note: in expansion of macro '___constant_swab16' ___constant_swab16(x) : \ ^~~~~~~~~~~~~~~~~~ include/uapi/linux/byteorder/big_endian.h:34:43: note: in expansion of macro '__swab16' #define __cpu_to_le16(x) ((__force __le16)__swab16((x))) ^~~~~~~~ include/linux/byteorder/generic.h:89:21: note: in expansion of macro '__cpu_to_le16' #define cpu_to_le16 __cpu_to_le16 ^~~~~~~~~~~~~ drivers/net/wireless/rsi/rsi_91x_hal.c:136:3: note: in expansion of macro 'cpu_to_le16' cpu_to_le16((tx_params->vap_id << RSI_DESC_VAP_ID_OFST) & ^~~~~~~~~~~ The problem is that the 'mask' value is a signed integer that gets turned into a negative number when truncated to 16 bits. Making it an unsigned constant avoids this. Fixes: eac4eed3224b ("rsi: tx and rx path enhancements for p2p mode") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/broadcom')
0 files changed, 0 insertions, 0 deletions