diff options
| author | Joe Perches <joe@perches.com> | 2013-02-20 21:11:05 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2013-03-06 22:24:23 +0100 |
| commit | e5652756ff36ed9e1283121f788e6a17117efcab (patch) | |
| tree | 188efe8dec8a47f5a09d8fb18c357668852390ac | |
| parent | ssb: fix unaligned access to mac address (diff) | |
| download | linux-e5652756ff36ed9e1283121f788e6a17117efcab.tar.xz linux-e5652756ff36ed9e1283121f788e6a17117efcab.zip | |
ssb: pci: Standardize a function to get mac address
Don't require alignment of mac addresses to u16.
Signed-off-by: Joe Perches <joe@perches.com>
Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/ssb/pci.c | 44 |
1 files changed, 18 insertions, 26 deletions
diff --git a/drivers/ssb/pci.c b/drivers/ssb/pci.c index e9d94968f394..4ec0bdbf25ed 100644 --- a/drivers/ssb/pci.c +++ b/drivers/ssb/pci.c @@ -231,6 +231,15 @@ static inline u8 ssb_crc8(u8 crc, u8 data) return t[crc ^ data]; } +static void sprom_get_mac(char *mac, const u16 *in) +{ + int i; + for (i = 0; i < 3; i++) { + *mac++ = in[i]; + *mac++ = in[i] >> 8; + } +} + static u8 ssb_sprom_crc(const u16 *sprom, u16 size) { int word; @@ -341,8 +350,6 @@ static s8 r123_extract_antgain(u8 sprom_revision, const u16 *in, static void sprom_extract_r123(struct ssb_sprom *out, const u16 *in) { - int i; - u16 v; u16 loc[3]; if (out->revision == 3) /* rev 3 moved MAC */ @@ -352,19 +359,10 @@ static void sprom_extract_r123(struct ssb_sprom *out, const u16 *in) loc[1] = SSB_SPROM1_ET0MAC; loc[2] = SSB_SPROM1_ET1MAC; } - for (i = 0; i < 3; i++) { - v = in[SPOFF(loc[0]) + i]; - *(((__be16 *)out->il0mac) + i) = cpu_to_be16(v); - } + sprom_get_mac(out->il0mac, &in[SPOFF(loc[0])]); if (out->revision < 3) { /* only rev 1-2 have et0, et1 */ - for (i = 0; i < 3; i++) { - v = in[SPOFF(loc[1]) + i]; - *(((__be16 *)out->et0mac) + i) = cpu_to_be16(v); - } - for (i = 0; i < 3; i++) { - v = in[SPOFF(loc[2]) + i]; - *(((__be16 *)out->et1mac) + i) = cpu_to_be16(v); - } + sprom_get_mac(out->et0mac, &in[SPOFF(loc[1])]); + sprom_get_mac(out->et1mac, &in[SPOFF(loc[2])]); } SPEX(et0phyaddr, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET0A, 0); SPEX(et1phyaddr, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET1A, @@ -454,19 +452,15 @@ static void sprom_extract_r458(struct ssb_sprom *out, const u16 *in) static void sprom_extract_r45(struct ssb_sprom *out, const u16 *in) { - int i; - u16 v; u16 il0mac_offset; if (out->revision == 4) il0mac_offset = SSB_SPROM4_IL0MAC; else il0mac_offset = SSB_SPROM5_IL0MAC; - /* extract the MAC address */ - for (i = 0; i < 3; i++) { - v = in[SPOFF(il0mac_offset) + i]; - *(((__be16 *)out->il0mac) + i) = cpu_to_be16(v); - } + + sprom_get_mac(out->il0mac, &in[SPOFF(il0mac_offset)]); + SPEX(et0phyaddr, SSB_SPROM4_ETHPHY, SSB_SPROM4_ETHPHY_ET0A, 0); SPEX(et1phyaddr, SSB_SPROM4_ETHPHY, SSB_SPROM4_ETHPHY_ET1A, SSB_SPROM4_ETHPHY_ET1A_SHIFT); @@ -530,7 +524,7 @@ static void sprom_extract_r45(struct ssb_sprom *out, const u16 *in) static void sprom_extract_r8(struct ssb_sprom *out, const u16 *in) { int i; - u16 v, o; + u16 o; u16 pwr_info_offset[] = { SSB_SROM8_PWR_INFO_CORE0, SSB_SROM8_PWR_INFO_CORE1, SSB_SROM8_PWR_INFO_CORE2, SSB_SROM8_PWR_INFO_CORE3 @@ -539,10 +533,8 @@ static void sprom_extract_r8(struct ssb_sprom *out, const u16 *in) ARRAY_SIZE(out->core_pwr_info)); /* extract the MAC address */ - for (i = 0; i < 3; i++) { - v = in[SPOFF(SSB_SPROM8_IL0MAC) + i]; - *(((__be16 *)out->il0mac) + i) = cpu_to_be16(v); - } + sprom_get_mac(out->il0mac, &in[SPOFF(SSB_SPROM8_IL0MAC)]); + SPEX(board_rev, SSB_SPROM8_BOARDREV, 0xFFFF, 0); SPEX(alpha2[0], SSB_SPROM8_CCODE, 0xff00, 8); SPEX(alpha2[1], SSB_SPROM8_CCODE, 0x00ff, 0); |