44 lines
1.5 KiB
Diff
44 lines
1.5 KiB
Diff
From 7762bb134e3b40e8ee2611365775b7432190a9c7 Mon Sep 17 00:00:00 2001
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From: Wright Feng <wright.feng@cypress.com>
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Date: Mon, 11 Dec 2017 15:38:21 +0800
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Subject: [PATCH] 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
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firmwares. For instance, the return size of cap iovar is 271 bytes in 4373
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13.10.246.79 firmare. It makes feature capability parsing failed because
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caps buffer is default value.
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So we enlarge caps buffer size to 512 bytes and add the error print for
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cap iovar error.
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Signed-off-by: Wright Feng <wright.feng@cypress.com>
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Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
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Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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---
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drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c | 12 +++++++++---
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1 file changed, 9 insertions(+), 3 deletions(-)
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--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
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+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
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@@ -130,13 +130,19 @@ static void brcmf_feat_iovar_data_set(st
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}
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}
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+#define MAX_CAPS_BUFFER_SIZE 512
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static void brcmf_feat_firmware_capabilities(struct brcmf_if *ifp)
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{
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- char caps[256];
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+ char caps[MAX_CAPS_BUFFER_SIZE];
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enum brcmf_feat_id id;
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- int i;
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+ int i, err;
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+
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+ err = brcmf_fil_iovar_data_get(ifp, "cap", caps, sizeof(caps));
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+ if (err) {
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+ brcmf_err("could not get firmware cap (%d)\n", err);
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+ return;
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+ }
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- brcmf_fil_iovar_data_get(ifp, "cap", caps, sizeof(caps));
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brcmf_dbg(INFO, "[ %s]\n", caps);
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for (i = 0; i < ARRAY_SIZE(brcmf_fwcap_map); i++) {
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