From fc23e81eb8f4231aa8a34c83e95c11d72e494f1d Mon Sep 17 00:00:00 2001 From: =?utf8?q?Rafa=C5=82=20Mi=C5=82ecki?= 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=utf8 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 Acked-by: Arend van Spriel Signed-off-by: Kalle Valo --- drivers/net/wireless/brcm80211/brcmfmac/firmware.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/brcm80211/brcmfmac/firmware.c b/drivers/net/wireless/brcm80211/brcmfmac/firmware.c index e6673a9b6e9e..7ae6461df932 100644 --- 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_nvram_handle_key(struct nvram_parser *nvp) 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; -- 2.20.1