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brcmfmac: don't net_ratelimit() CONSOLE messages on firmware crash

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Firmware crash is a pretty rare event and can't happen too frequently as
it has to be followed by a hardware reinitialization and config reload.
It should be safe to don't use net_ratelimit() when it happens.

For reporting & debugging purposes it's important to provide a complete
log as the last lines are actually the most important. This change
modifies brcmfmac to print all messages in an unlimited way in that
specific case. With this change there should be finally a backtrace of
firmware finally visible after a crash.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Rafał Miłecki 2019-07-21 21:52:17 +02:00 committed by Kalle Valo
parent 2ec4ad49b9
commit e3b1d879cc
1 changed files with 2 additions and 1 deletions
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3
drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
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@ -794,7 +794,8 @@ static void brcmf_pcie_bus_console_read(struct brcmf_pciedev_info *devinfo,
if (ch == '\n') {
console->log_str[console->log_idx] = 0;
if (error)
brcmf_err(bus, "CONSOLE: %s", console->log_str);
__brcmf_err(bus, __func__, "CONSOLE: %s",
console->log_str);
else
pr_debug("CONSOLE: %s", console->log_str);
console->log_idx = 0;