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@@ -50,7 +50,7 @@ Origin: backport, https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
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--- a/ath10k-4.13/core.c
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+++ b/ath10k-4.13/core.c
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-@@ -1419,14 +1419,61 @@ out:
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+@@ -1427,14 +1427,61 @@ out:
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return ret;
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}
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@@ -115,7 +115,7 @@ Origin: backport, https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
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ar->normal_mode_fw.board = ath10k_fetch_fw_file(ar,
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ar->hw_params.fw.dir,
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-@@ -1464,73 +1511,28 @@ static int ath10k_core_fetch_board_data_
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+@@ -1472,73 +1519,28 @@ static int ath10k_core_fetch_board_data_
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data += magic_len;
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len -= magic_len;
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@@ -198,7 +198,7 @@ Origin: backport, https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
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return 0;
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err:
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-@@ -1539,12 +1541,12 @@ err:
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+@@ -1547,12 +1549,12 @@ err:
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}
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static int ath10k_core_create_board_name(struct ath10k *ar, char *name,
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@@ -213,7 +213,206 @@ Origin: backport, https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
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scnprintf(variant, sizeof(variant), ",variant=%s",
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ar->id.bdf_ext);
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-@@ -1570,21 +1572,31 @@ out:
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+@@ -1578,21 +1580,31 @@ out:
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+
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+ static int ath10k_core_fetch_board_file(struct ath10k *ar)
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+ {
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+- char boardname[100];
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++ char boardname[100], fallback_boardname[100];
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+ int ret;
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+
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+- ret = ath10k_core_create_board_name(ar, boardname, sizeof(boardname));
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++ ret = ath10k_core_create_board_name(ar, boardname,
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++ sizeof(boardname), true);
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+ if (ret) {
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+ ath10k_err(ar, "failed to create board name: %d", ret);
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+ return ret;
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+ }
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+
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++ ret = ath10k_core_create_board_name(ar, fallback_boardname,
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++ sizeof(boardname), false);
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++ if (ret) {
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++ ath10k_err(ar, "failed to create fallback board name: %d", ret);
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++ return ret;
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++ }
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++
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+ ar->bd_api = 2;
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+ if (ar->fwcfg.bname[0])
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+ ret = ath10k_core_fetch_board_data_api_n(ar, boardname,
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++ fallback_boardname,
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+ ar->fwcfg.bname);
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+ else
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+ ret = ath10k_core_fetch_board_data_api_n(ar, boardname,
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++ fallback_boardname,
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+ ATH10K_BOARD_API2_FILE);
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+ if (!ret)
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+ goto success;
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+--- a/ath10k-4.16/core.c
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++++ b/ath10k-4.16/core.c
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+@@ -1559,14 +1559,61 @@ out:
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+ return ret;
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+ }
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+
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++static int ath10k_core_search_bd(struct ath10k *ar,
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++ const char *boardname,
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++ const u8 *data,
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++ size_t len)
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++{
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++ size_t ie_len;
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++ struct ath10k_fw_ie *hdr;
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++ int ret = -ENOENT, ie_id;
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++
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++ while (len > sizeof(struct ath10k_fw_ie)) {
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++ hdr = (struct ath10k_fw_ie *)data;
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++ ie_id = le32_to_cpu(hdr->id);
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++ ie_len = le32_to_cpu(hdr->len);
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++
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++ len -= sizeof(*hdr);
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++ data = hdr->data;
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++
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++ if (len < ALIGN(ie_len, 4)) {
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++ ath10k_err(ar, "invalid length for board ie_id %d ie_len %zu len %zu\n",
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++ ie_id, ie_len, len);
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++ return -EINVAL;
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++ }
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++
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++ switch (ie_id) {
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++ case ATH10K_BD_IE_BOARD:
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++ ret = ath10k_core_parse_bd_ie_board(ar, data, ie_len,
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++ boardname);
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++ if (ret == -ENOENT)
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++ /* no match found, continue */
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++ break;
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++
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++ /* either found or error, so stop searching */
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++ goto out;
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++ }
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++
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++ /* jump over the padding */
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++ ie_len = ALIGN(ie_len, 4);
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++
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++ len -= ie_len;
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++ data += ie_len;
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++ }
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++
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++out:
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++ /* return result of parse_bd_ie_board() or -ENOENT */
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++ return ret;
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++}
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++
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+ static int ath10k_core_fetch_board_data_api_n(struct ath10k *ar,
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+ const char *boardname,
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++ const char *fallback_boardname,
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+ const char *filename)
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+ {
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+- size_t len, magic_len, ie_len;
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+- struct ath10k_fw_ie *hdr;
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++ size_t len, magic_len;
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+ const u8 *data;
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+- int ret, ie_id;
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++ int ret;
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+
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+ ar->normal_mode_fw.board = ath10k_fetch_fw_file(ar,
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+ ar->hw_params.fw.dir,
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+@@ -1604,73 +1651,28 @@ static int ath10k_core_fetch_board_data_
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+ data += magic_len;
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+ len -= magic_len;
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+
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+- while (len > sizeof(struct ath10k_fw_ie)) {
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+- hdr = (struct ath10k_fw_ie *)data;
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+- ie_id = le32_to_cpu(hdr->id);
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+- ie_len = le32_to_cpu(hdr->len);
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+-
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+- len -= sizeof(*hdr);
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+- data = hdr->data;
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+-
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+- if (len < ALIGN(ie_len, 4)) {
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+- ath10k_err(ar, "invalid length for board ie_id %d ie_len %zu len %zu\n",
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+- ie_id, ie_len, len);
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+- ret = -EINVAL;
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+- goto err;
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+- }
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+-
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+- switch (ie_id) {
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+- case ATH10K_BD_IE_BOARD:
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+- ret = ath10k_core_parse_bd_ie_board(ar, data, ie_len,
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+- boardname);
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+- if (ret == -ENOENT && ar->id.bdf_ext[0] != '\0') {
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+- /* try default bdf if variant was not found */
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+- char *s, *v = ",variant=";
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+- char boardname2[100];
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+-
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+- strlcpy(boardname2, boardname,
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+- sizeof(boardname2));
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+-
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+- s = strstr(boardname2, v);
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+- if (s)
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+- *s = '\0'; /* strip ",variant=%s" */
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+-
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+- ret = ath10k_core_parse_bd_ie_board(ar, data,
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+- ie_len,
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+- boardname2);
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+- }
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+-
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+- if (ret == -ENOENT)
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+- /* no match found, continue */
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+- break;
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+- else if (ret)
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+- /* there was an error, bail out */
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+- goto err;
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+-
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+- /* board data found */
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+- goto out;
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+- }
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++ /* attempt to find boardname in the IE list */
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++ ret = ath10k_core_search_bd(ar, boardname, data, len);
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+
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+- /* jump over the padding */
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+- ie_len = ALIGN(ie_len, 4);
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+-
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+- len -= ie_len;
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+- data += ie_len;
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+- }
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++ /* if we didn't find it and have a fallback name, try that */
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++ if (ret == -ENOENT && fallback_boardname)
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++ ret = ath10k_core_search_bd(ar, fallback_boardname, data, len);
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+
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+ out:
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+- if (!ar->normal_mode_fw.board_data || !ar->normal_mode_fw.board_len) {
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++ if (ret == -ENOENT) {
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+ ath10k_err(ar,
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+ "failed to fetch board data for %s from %s/%s\n",
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+ boardname, ar->hw_params.fw.dir, filename);
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+ ret = -ENODATA;
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+- goto err;
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+ }
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+
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+ /* Save firmware board name so we can display it later. */
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+ strlcpy(ar->normal_mode_fw.fw_file.fw_board_name, filename,
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+ sizeof(ar->normal_mode_fw.fw_file.fw_board_name));
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+
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++ if (ret)
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++ goto err;
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++
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+ return 0;
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+
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+ err:
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+@@ -1679,12 +1681,12 @@ err:
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+ }
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+
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+ static int ath10k_core_create_board_name(struct ath10k *ar, char *name,
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+- size_t name_len)
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++ size_t name_len, bool with_variant)
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+ {
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+ /* strlen(',variant=') + strlen(ar->id.bdf_ext) */
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+ char variant[9 + ATH10K_SMBIOS_BDF_EXT_STR_LENGTH] = { 0 };
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+
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+- if (ar->id.bdf_ext[0] != '\0')
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++ if (with_variant && ar->id.bdf_ext[0] != '\0')
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+ scnprintf(variant, sizeof(variant), ",variant=%s",
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+ ar->id.bdf_ext);
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+
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+@@ -1710,21 +1712,31 @@ out:
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static int ath10k_core_fetch_board_file(struct ath10k *ar)
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{
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