leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

brcm80211: smac: change buffer endianess convert function interface

Browse Source 
The buffer endianess conversion functions in srom.c had a size
argument giving number of bytes but the function converts words.
Providing the number of words to the function is more sensible
so that is done in this patch.

Reported-by: Pavel Roskin <proski@gnu.org>
Reported-by: Larry Finger <Larry.Finger@lwfinger.net>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Alwin Beukers <alwin@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Arend van Spriel 2011-10-21 16:16:35 +02:00 committed by John W. Linville
parent d1a5b6fbec
commit 028f78d43d
1 changed files with 15 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
drivers/net/wireless/brcm80211/brcmsmac/srom.c
View File

@ -617,18 +617,16 @@ static uint mask_width(u16 mask)
return 0;
}
static inline void le16_to_cpu_buf(u16 *buf, unsigned int size)
static inline void le16_to_cpu_buf(u16 *buf, uint nwords)
{
size /= 2;
while (size--)
*(buf + size) = le16_to_cpu(*(__le16 *)(buf + size));
while (nwords--)
*(buf + nwords) = le16_to_cpu(*(__le16 *)(buf + nwords));
}
static inline void cpu_to_le16_buf(u16 *buf, unsigned int size)
static inline void cpu_to_le16_buf(u16 *buf, uint nwords)
{
size /= 2;
while (size--)
*(__le16 *)(buf + size) = cpu_to_le16(*(buf + size));
while (nwords--)
*(__le16 *)(buf + nwords) = cpu_to_le16(*(buf + nwords));
}
/*
@ -807,12 +805,12 @@ sprom_read_pci(struct si_pub *sih, u8 __iomem *sprom, uint wordoff,
err = -EIO;
else
/* now correct the endianness of the byte array */
le16_to_cpu_buf(buf, nbytes);
le16_to_cpu_buf(buf, nwords);
return err;
}
static int otp_read_pci(struct si_pub *sih, u16 *buf, uint bufsz)
static int otp_read_pci(struct si_pub *sih, u16 *buf, uint nwords)
{
u8 *otp;
uint sz = OTP_SZ_MAX / 2; /* size in words */
@ -824,7 +822,8 @@ static int otp_read_pci(struct si_pub *sih, u16 *buf, uint bufsz)
err = otp_read_region(sih, OTP_HW_RGN, (u16 *) otp, &sz);
memcpy(buf, otp, bufsz);
sz = min_t(uint, sz, nwords);
memcpy(buf, otp, sz * 2);
kfree(otp);
@ -836,14 +835,12 @@ static int otp_read_pci(struct si_pub *sih, u16 *buf, uint bufsz)
*/
return -ENODATA;
/* fixup the endianness so crc8 will pass */
cpu_to_le16_buf(buf, bufsz);
if (crc8(brcms_srom_crc8_table, (u8 *) buf, SROM4_WORDS * 2,
if (crc8(brcms_srom_crc8_table, (u8 *) buf, sz * 2,
CRC8_INIT_VALUE) != CRC8_GOOD_VALUE(brcms_srom_crc8_table))
err = -EIO;
else
/* now correct the endianness of the byte array */
le16_to_cpu_buf(buf, bufsz);
le16_to_cpu_buf(buf, sz);
return err;
}
@ -880,7 +877,7 @@ static int initvars_srom_pci(struct si_pub *sih, void __iomem *curmap)
sromrev = srom[SROM4_CRCREV] & 0xff;
} else {
/* Use OTP if SPROM not available */
err = otp_read_pci(sih, srom, SROM_MAX);
err = otp_read_pci(sih, srom, SROM4_WORDS);
if (err == 0)
/* OTP only contain SROM rev8/rev9 for now */
sromrev = srom[SROM4_CRCREV] & 0xff;