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