mirror of https://github.com/hak5/openwrt.git
149 lines
4.5 KiB
Diff
149 lines
4.5 KiB
Diff
From f1ac3aa212af6dd0a36dc07a63f95f91be6f4935 Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
|
|
Date: Fri, 24 Feb 2017 17:32:46 +0100
|
|
Subject: [PATCH] brcmfmac: always print error when PSM's watchdog fires
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
So far we were attaching BRCMF_E_PSM_WATCHDOG event listener in
|
|
brcmf_debug_attach which gets compiled only with CONFIG_BRCMDBG. This
|
|
event means something went wrong and firmware / hardware usually can't
|
|
be expected to work (reliably).
|
|
|
|
Such a problem is significant for user experience so I believe we should
|
|
print an error unconditionally (even with debugging disabled). What can
|
|
be indeed optional is dumping bus memory as this is clearly part of
|
|
debugging process.
|
|
|
|
In the future we may also try to extend this listener by trying to
|
|
recover from the error or at least signal it to the cfg80211.
|
|
|
|
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
|
|
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
|
|
---
|
|
.../wireless/broadcom/brcm80211/brcmfmac/core.c | 22 ++++++++++++++++++
|
|
.../wireless/broadcom/brcm80211/brcmfmac/debug.c | 26 +++-------------------
|
|
.../wireless/broadcom/brcm80211/brcmfmac/debug.h | 9 ++++++++
|
|
3 files changed, 34 insertions(+), 23 deletions(-)
|
|
|
|
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
|
|
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
|
|
@@ -738,6 +738,24 @@ void brcmf_remove_interface(struct brcmf
|
|
brcmf_del_if(ifp->drvr, ifp->bsscfgidx, rtnl_locked);
|
|
}
|
|
|
|
+static int brcmf_psm_watchdog_notify(struct brcmf_if *ifp,
|
|
+ const struct brcmf_event_msg *evtmsg,
|
|
+ void *data)
|
|
+{
|
|
+ int err;
|
|
+
|
|
+ brcmf_dbg(TRACE, "enter: bsscfgidx=%d\n", ifp->bsscfgidx);
|
|
+
|
|
+ brcmf_err("PSM's watchdog has fired!\n");
|
|
+
|
|
+ err = brcmf_debug_create_memdump(ifp->drvr->bus_if, data,
|
|
+ evtmsg->datalen);
|
|
+ if (err)
|
|
+ brcmf_err("Failed to get memory dump, %d\n", err);
|
|
+
|
|
+ return err;
|
|
+}
|
|
+
|
|
#ifdef CONFIG_INET
|
|
#define ARPOL_MAX_ENTRIES 8
|
|
static int brcmf_inetaddr_changed(struct notifier_block *nb,
|
|
@@ -917,6 +935,10 @@ int brcmf_attach(struct device *dev, str
|
|
goto fail;
|
|
}
|
|
|
|
+ /* Attach to events important for core code */
|
|
+ brcmf_fweh_register(drvr, BRCMF_E_PSM_WATCHDOG,
|
|
+ brcmf_psm_watchdog_notify);
|
|
+
|
|
/* attach firmware event handler */
|
|
brcmf_fweh_attach(drvr);
|
|
|
|
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c
|
|
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c
|
|
@@ -27,8 +27,8 @@
|
|
|
|
static struct dentry *root_folder;
|
|
|
|
-static int brcmf_debug_create_memdump(struct brcmf_bus *bus, const void *data,
|
|
- size_t len)
|
|
+int brcmf_debug_create_memdump(struct brcmf_bus *bus, const void *data,
|
|
+ size_t len)
|
|
{
|
|
void *dump;
|
|
size_t ramsize;
|
|
@@ -54,24 +54,6 @@ static int brcmf_debug_create_memdump(st
|
|
return 0;
|
|
}
|
|
|
|
-static int brcmf_debug_psm_watchdog_notify(struct brcmf_if *ifp,
|
|
- const struct brcmf_event_msg *evtmsg,
|
|
- void *data)
|
|
-{
|
|
- int err;
|
|
-
|
|
- brcmf_dbg(TRACE, "enter: bsscfgidx=%d\n", ifp->bsscfgidx);
|
|
-
|
|
- brcmf_err("PSM's watchdog has fired!\n");
|
|
-
|
|
- err = brcmf_debug_create_memdump(ifp->drvr->bus_if, data,
|
|
- evtmsg->datalen);
|
|
- if (err)
|
|
- brcmf_err("Failed to get memory dump, %d\n", err);
|
|
-
|
|
- return err;
|
|
-}
|
|
-
|
|
void brcmf_debugfs_init(void)
|
|
{
|
|
root_folder = debugfs_create_dir(KBUILD_MODNAME, NULL);
|
|
@@ -99,9 +81,7 @@ int brcmf_debug_attach(struct brcmf_pub
|
|
if (IS_ERR(drvr->dbgfs_dir))
|
|
return PTR_ERR(drvr->dbgfs_dir);
|
|
|
|
-
|
|
- return brcmf_fweh_register(drvr, BRCMF_E_PSM_WATCHDOG,
|
|
- brcmf_debug_psm_watchdog_notify);
|
|
+ return 0;
|
|
}
|
|
|
|
void brcmf_debug_detach(struct brcmf_pub *drvr)
|
|
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h
|
|
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h
|
|
@@ -99,6 +99,7 @@ do { \
|
|
|
|
extern int brcmf_msg_level;
|
|
|
|
+struct brcmf_bus;
|
|
struct brcmf_pub;
|
|
#ifdef DEBUG
|
|
void brcmf_debugfs_init(void);
|
|
@@ -108,6 +109,8 @@ void brcmf_debug_detach(struct brcmf_pub
|
|
struct dentry *brcmf_debugfs_get_devdir(struct brcmf_pub *drvr);
|
|
int brcmf_debugfs_add_entry(struct brcmf_pub *drvr, const char *fn,
|
|
int (*read_fn)(struct seq_file *seq, void *data));
|
|
+int brcmf_debug_create_memdump(struct brcmf_bus *bus, const void *data,
|
|
+ size_t len);
|
|
#else
|
|
static inline void brcmf_debugfs_init(void)
|
|
{
|
|
@@ -128,6 +131,12 @@ int brcmf_debugfs_add_entry(struct brcmf
|
|
{
|
|
return 0;
|
|
}
|
|
+static inline
|
|
+int brcmf_debug_create_memdump(struct brcmf_bus *bus, const void *data,
|
|
+ size_t len)
|
|
+{
|
|
+ return 0;
|
|
+}
|
|
#endif
|
|
|
|
#endif /* BRCMFMAC_DEBUG_H */
|