diff options
Diffstat (limited to 'package/kernel/mac80211/patches/307-v4.15-brcmfmac-fix-CLM-load-error-for-legacy-chips-when-us.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/307-v4.15-brcmfmac-fix-CLM-load-error-for-legacy-chips-when-us.patch | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/307-v4.15-brcmfmac-fix-CLM-load-error-for-legacy-chips-when-us.patch b/package/kernel/mac80211/patches/307-v4.15-brcmfmac-fix-CLM-load-error-for-legacy-chips-when-us.patch new file mode 100644 index 0000000000..ead5e72145 --- /dev/null +++ b/package/kernel/mac80211/patches/307-v4.15-brcmfmac-fix-CLM-load-error-for-legacy-chips-when-us.patch @@ -0,0 +1,40 @@ +From cc124d5cc8d81985c3511892d7a6d546552ff754 Mon Sep 17 00:00:00 2001 +From: Wright Feng <wright.feng@cypress.com> +Date: Tue, 16 Jan 2018 17:26:50 +0800 +Subject: [PATCH] brcmfmac: fix CLM load error for legacy chips when user + helper is enabled + +For legacy chips without CLM blob files, kernel with user helper function +returns -EAGAIN when we request_firmware(), and then driver got failed +when bringing up legacy chips. We expect the CLM blob file for legacy chip +is not existence in firmware path, but the -ENOENT error is transferred to +-EAGAIN in firmware_class.c with user helper. +Because of that, we continue with CLM data currently present in firmware +if getting error from doing request_firmware(). + +Cc: stable@vger.kernel.org # v4.15.y +Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com> +Signed-off-by: Wright Feng <wright.feng@cypress.com> +Signed-off-by: Kalle Valo <kvalo@codeaurora.org> +--- + drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c | 9 +++------ + 1 file changed, 3 insertions(+), 6 deletions(-) + +--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c ++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c +@@ -182,12 +182,9 @@ static int brcmf_c_process_clm_blob(stru + + err = request_firmware(&clm, clm_name, dev); + if (err) { +- if (err == -ENOENT) { +- brcmf_dbg(INFO, "continue with CLM data currently present in firmware\n"); +- return 0; +- } +- brcmf_err("request CLM blob file failed (%d)\n", err); +- return err; ++ brcmf_info("no clm_blob available(err=%d), device may have limited channels available\n", ++ err); ++ return 0; + } + + chunk_buf = kzalloc(sizeof(*chunk_buf) + MAX_CHUNK_LEN - 1, GFP_KERNEL); |