brcmfmac: introduce tracepoints for message logging

Inspired by tracing functionality added by Seth Forshee in the
brcmsmac driver, this patch adds similar functionality to brcmfmac.

Reviewed-by: Piotr Haber <phaber@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c
index 4544342..be0787c 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c
@@ -24,6 +24,7 @@
 #include "dhd_proto.h"
 #include "dhd_dbg.h"
 #include "fwil.h"
+#include "tracepoint.h"
 
 #define PKTFILTER_BUF_SIZE		128
 #define BRCMF_ARPOL_MODE		0xb	/* agent|snoop|peer_autoreply */
@@ -373,3 +374,35 @@ int brcmf_c_preinit_dcmds(struct brcmf_if *ifp)
 done:
 	return err;
 }
+
+#ifdef CONFIG_BRCM_TRACING
+void __brcmf_err(const char *func, const char *fmt, ...)
+{
+	struct va_format vaf = {
+		.fmt = fmt,
+	};
+	va_list args;
+
+	va_start(args, fmt);
+	vaf.va = &args;
+	pr_err("%s: %pV", func, &vaf);
+	trace_brcmf_err(func, &vaf);
+	va_end(args);
+}
+#endif
+#if defined(CONFIG_BRCM_TRACING) || defined(CONFIG_BRCMDBG)
+void __brcmf_dbg(u32 level, const char *func, const char *fmt, ...)
+{
+	struct va_format vaf = {
+		.fmt = fmt,
+	};
+	va_list args;
+
+	va_start(args, fmt);
+	vaf.va = &args;
+	if (brcmf_msg_level & level)
+		pr_debug("%s %pV", func, &vaf);
+	trace_brcmf_dbg(level, func, &vaf);
+	va_end(args);
+}
+#endif