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brcmfmac: enlarge buffer size of caps to 512 bytes

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The buffer size of return of cap iovar is greater than 256 bytes in some
firmwares. For instance, the return size of cap iovar is 271 bytes in 4373
13.10.246.79 firmare. It makes feature capability parsing failed because
caps buffer is default value.
So we enlarge caps buffer size to 512 bytes and add the error print for
cap iovar error.

Signed-off-by: Wright Feng <wright.feng@cypress.com>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Wright Feng 2017-12-11 15:38:21 +08:00 committed by Kalle Valo
parent 21a10846d0
commit 7762bb134e
1 changed files with 9 additions and 3 deletions
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12
drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
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@ -130,13 +130,19 @@ static void brcmf_feat_iovar_data_set(struct brcmf_if *ifp,
}
}
#define MAX_CAPS_BUFFER_SIZE 512
static void brcmf_feat_firmware_capabilities(struct brcmf_if *ifp)
{
char caps[256];
char caps[MAX_CAPS_BUFFER_SIZE];
enum brcmf_feat_id id;
int i;
int i, err;
err = brcmf_fil_iovar_data_get(ifp, "cap", caps, sizeof(caps));
if (err) {
brcmf_err("could not get firmware cap (%d)\n", err);
return;
}
brcmf_fil_iovar_data_get(ifp, "cap", caps, sizeof(caps));
brcmf_dbg(INFO, "[ %s]\n", caps);
for (i = 0; i < ARRAY_SIZE(brcmf_fwcap_map); i++) {