diff options
| author | Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> | 2011-08-31 15:48:15 +0530 |
|---|---|---|
| committer | Kalle Valo <kvalo@qca.qualcomm.com> | 2011-09-02 12:02:51 +0300 |
| commit | b142b91401b8e39671db74bd4fe89f281f4c2978 (patch) | |
| tree | 586b907da8bdedf8a0476c321c3b45d3fd97d9a6 /drivers/net/wireless/ath/ath6kl/main.c | |
| parent | 91d57de5adfc40184ef7cb8974104459c5211add (diff) | |
ath6kl: Fix endianness in requesting chip register read
Need to make sure the chip address for which we need the value
si endian safe.
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath6kl/main.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath6kl/main.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/net/wireless/ath/ath6kl/main.c b/drivers/net/wireless/ath/ath6kl/main.c index 937c7a238c12..bda14d1d6f2f 100644 --- a/drivers/net/wireless/ath/ath6kl/main.c +++ b/drivers/net/wireless/ath/ath6kl/main.c @@ -178,8 +178,8 @@ void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie) static int ath6kl_set_addrwin_reg(struct ath6kl *ar, u32 reg_addr, u32 addr) { int status; - u8 addr_val[4]; s32 i; + __le32 addr_val; /* * Write bytes 1,2,3 of the register to set the upper address bytes, @@ -189,16 +189,18 @@ static int ath6kl_set_addrwin_reg(struct ath6kl *ar, u32 reg_addr, u32 addr) for (i = 1; i <= 3; i++) { /* * Fill the buffer with the address byte value we want to - * hit 4 times. + * hit 4 times. No need to worry about endianness as the + * same byte is copied to all four bytes of addr_val at + * any time. */ - memset(addr_val, ((u8 *)&addr)[i], 4); + memset((u8 *)&addr_val, ((u8 *)&addr)[i], 4); /* * Hit each byte of the register address with a 4-byte * write operation to the same address, this is a harmless * operation. */ - status = hif_read_write_sync(ar, reg_addr + i, addr_val, + status = hif_read_write_sync(ar, reg_addr + i, (u8 *)&addr_val, 4, HIF_WR_SYNC_BYTE_FIX); if (status) break; @@ -216,7 +218,9 @@ static int ath6kl_set_addrwin_reg(struct ath6kl *ar, u32 reg_addr, u32 addr) * cycle to start, the extra 3 byte write to bytes 1,2,3 has no * effect since we are writing the same values again */ - status = hif_read_write_sync(ar, reg_addr, (u8 *)(&addr), + addr_val = cpu_to_le32(addr); + status = hif_read_write_sync(ar, reg_addr, + (u8 *)&(addr_val), 4, HIF_WR_SYNC_BYTE_INC); if (status) { |