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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Sat, 23 May 2015 09:15:33 +0200
Subject: [PATCH] brcmfmac: allow NVRAM values to contain spaces
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Platform NVRAMs often contain values with spaces. Even if right now most
firmware-supported entries are simple values, we shouldn't reject these
with spaces. It was semi-confirmed by Broadcom in the early patch adding
support for platform NVRAMs.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
--- a/drivers/net/wireless/brcm80211/brcmfmac/firmware.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/firmware.c
@@ -66,6 +66,12 @@ struct nvram_parser {
bool multi_dev_v2;
};
+/**
+ * is_nvram_char() - check if char is a valid one for NVRAM entry
+ *
+ * It accepts all printable ASCII chars except for '#' which opens a comment.
+ * Please note that ' ' (space) while accepted is not a valid key name char.
+ */
static bool is_nvram_char(char c)
{
/* comment marker excluded */
@@ -73,7 +79,7 @@ static bool is_nvram_char(char c)
return false;
/* key and value may have any other readable character */
- return (c > 0x20 && c < 0x7f);
+ return (c >= 0x20 && c < 0x7f);
}
static bool is_whitespace(char c)
@@ -120,7 +126,7 @@ static enum nvram_parser_state brcmf_nvr
nvp->multi_dev_v1 = true;
if (strncmp(&nvp->fwnv->data[nvp->entry], "pcie/", 5) == 0)
nvp->multi_dev_v2 = true;
- } else if (!is_nvram_char(c)) {
+ } else if (!is_nvram_char(c) || c == ' ') {
brcmf_dbg(INFO, "warning: ln=%d:col=%d: '=' expected, skip invalid key entry\n",
nvp->line, nvp->column);
return COMMENT;
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