diff options
Diffstat (limited to 'package/kernel/mac80211/patches/354-brcmfmac-use-direct-data-pointer-in-NVRAM-parser-str.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/354-brcmfmac-use-direct-data-pointer-in-NVRAM-parser-str.patch | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/354-brcmfmac-use-direct-data-pointer-in-NVRAM-parser-str.patch b/package/kernel/mac80211/patches/354-brcmfmac-use-direct-data-pointer-in-NVRAM-parser-str.patch new file mode 100644 index 0000000000..c6e83ddd29 --- /dev/null +++ b/package/kernel/mac80211/patches/354-brcmfmac-use-direct-data-pointer-in-NVRAM-parser-str.patch @@ -0,0 +1,144 @@ +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com> +Date: Thu, 4 Jun 2015 22:11:07 +0200 +Subject: [PATCH] brcmfmac: use direct data pointer in NVRAM parser struct +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +As we plan to add support for platform NVRAM we should store direct +data pointer without the extra struct firmware layer. This will allow +us to support other sources with the only requirement being u8 buffer. + +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 +@@ -43,7 +43,7 @@ enum nvram_parser_state { + * struct nvram_parser - internal info for parser. + * + * @state: current parser state. +- * @fwnv: input buffer being parsed. ++ * @data: input buffer being parsed. + * @nvram: output buffer with parse result. + * @nvram_len: lenght of parse result. + * @line: current line. +@@ -55,7 +55,7 @@ enum nvram_parser_state { + */ + struct nvram_parser { + enum nvram_parser_state state; +- const struct firmware *fwnv; ++ const u8 *data; + u8 *nvram; + u32 nvram_len; + u32 line; +@@ -91,7 +91,7 @@ static enum nvram_parser_state brcmf_nvr + { + char c; + +- c = nvp->fwnv->data[nvp->pos]; ++ c = nvp->data[nvp->pos]; + if (c == '\n') + return COMMENT; + if (is_whitespace(c)) +@@ -115,16 +115,16 @@ static enum nvram_parser_state brcmf_nvr + enum nvram_parser_state st = nvp->state; + char c; + +- c = nvp->fwnv->data[nvp->pos]; ++ c = nvp->data[nvp->pos]; + if (c == '=') { + /* ignore RAW1 by treating as comment */ +- if (strncmp(&nvp->fwnv->data[nvp->entry], "RAW1", 4) == 0) ++ if (strncmp(&nvp->data[nvp->entry], "RAW1", 4) == 0) + st = COMMENT; + else + st = VALUE; +- if (strncmp(&nvp->fwnv->data[nvp->entry], "devpath", 7) == 0) ++ if (strncmp(&nvp->data[nvp->entry], "devpath", 7) == 0) + nvp->multi_dev_v1 = true; +- if (strncmp(&nvp->fwnv->data[nvp->entry], "pcie/", 5) == 0) ++ if (strncmp(&nvp->data[nvp->entry], "pcie/", 5) == 0) + nvp->multi_dev_v2 = true; + } else if (!is_nvram_char(c) || c == ' ') { + brcmf_dbg(INFO, "warning: ln=%d:col=%d: '=' expected, skip invalid key entry\n", +@@ -145,11 +145,11 @@ brcmf_nvram_handle_value(struct nvram_pa + char *ekv; + u32 cplen; + +- c = nvp->fwnv->data[nvp->pos]; ++ c = nvp->data[nvp->pos]; + if (!is_nvram_char(c)) { + /* key,value pair complete */ +- ekv = (u8 *)&nvp->fwnv->data[nvp->pos]; +- skv = (u8 *)&nvp->fwnv->data[nvp->entry]; ++ ekv = (u8 *)&nvp->data[nvp->pos]; ++ skv = (u8 *)&nvp->data[nvp->entry]; + cplen = ekv - skv; + if (nvp->nvram_len + cplen + 1 >= BRCMF_FW_MAX_NVRAM_SIZE) + return END; +@@ -170,7 +170,7 @@ brcmf_nvram_handle_comment(struct nvram_ + { + char *eoc, *sol; + +- sol = (char *)&nvp->fwnv->data[nvp->pos]; ++ sol = (char *)&nvp->data[nvp->pos]; + eoc = strchr(sol, '\n'); + if (!eoc) { + eoc = strchr(sol, '\0'); +@@ -201,17 +201,17 @@ static enum nvram_parser_state + }; + + static int brcmf_init_nvram_parser(struct nvram_parser *nvp, +- const struct firmware *nv) ++ const u8 *data, size_t data_len) + { + size_t size; + + memset(nvp, 0, sizeof(*nvp)); +- nvp->fwnv = nv; ++ nvp->data = data; + /* Limit size to MAX_NVRAM_SIZE, some files contain lot of comment */ +- if (nv->size > BRCMF_FW_MAX_NVRAM_SIZE) ++ if (data_len > BRCMF_FW_MAX_NVRAM_SIZE) + size = BRCMF_FW_MAX_NVRAM_SIZE; + else +- size = nv->size; ++ size = data_len; + /* Alloc for extra 0 byte + roundup by 4 + length field */ + size += 1 + 3 + sizeof(u32); + nvp->nvram = kzalloc(size, GFP_KERNEL); +@@ -362,18 +362,18 @@ fail: + * and converts newlines to NULs. Shortens buffer as needed and pads with NULs. + * End of buffer is completed with token identifying length of buffer. + */ +-static void *brcmf_fw_nvram_strip(const struct firmware *nv, u32 *new_length, +- u16 domain_nr, u16 bus_nr) ++static void *brcmf_fw_nvram_strip(const u8 *data, size_t data_len, ++ u32 *new_length, u16 domain_nr, u16 bus_nr) + { + struct nvram_parser nvp; + u32 pad; + u32 token; + __le32 token_le; + +- if (brcmf_init_nvram_parser(&nvp, nv) < 0) ++ if (brcmf_init_nvram_parser(&nvp, data, data_len) < 0) + return NULL; + +- while (nvp.pos < nv->size) { ++ while (nvp.pos < data_len) { + nvp.state = nv_parser_states[nvp.state](&nvp); + if (nvp.state == END) + break; +@@ -432,7 +432,7 @@ static void brcmf_fw_request_nvram_done( + goto fail; + + if (fw) { +- nvram = brcmf_fw_nvram_strip(fw, &nvram_length, ++ nvram = brcmf_fw_nvram_strip(fw->data, fw->size, &nvram_length, + fwctx->domain_nr, fwctx->bus_nr); + release_firmware(fw); + if (!nvram && !(fwctx->flags & BRCMF_FW_REQ_NV_OPTIONAL)) |