brcmfmac: firmware shared data version fix
authorPiotr Haber <phaber@broadcom.com>
Fri, 5 Apr 2013 08:57:43 +0000 (10:57 +0200)
committerJohn W. Linville <linville@tuxdriver.com>
Mon, 8 Apr 2013 19:28:42 +0000 (15:28 -0400)
Firware shared data structure is backward compatible for fields
we are interested in.
Allow reading of shared data in case of version mismatch.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Piotr Haber <phaber@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c

index ac9f650772fc78258d4d457ec9fb3c81b0f89436..5d5c02cea3e0620155883a963fe18a36d18c8c1b 100644 (file)
@@ -2721,8 +2721,8 @@ static int brcmf_sdio_readshared(struct brcmf_sdio *bus,
        sh->console_addr = le32_to_cpu(sh_le.console_addr);
        sh->msgtrace_addr = le32_to_cpu(sh_le.msgtrace_addr);
 
-       if ((sh->flags & SDPCM_SHARED_VERSION_MASK) != SDPCM_SHARED_VERSION) {
-               brcmf_err("sdpcm_shared version mismatch: dhd %d dongle %d\n",
+       if ((sh->flags & SDPCM_SHARED_VERSION_MASK) > SDPCM_SHARED_VERSION) {
+               brcmf_err("sdpcm shared version unsupported: dhd %d dongle %d\n",
                          SDPCM_SHARED_VERSION,
                          sh->flags & SDPCM_SHARED_VERSION_MASK);
                return -EPROTO;