diff mbox

[1/6] brcmfmac: remove fallback mechanism for BRCMF_FEAT_MONITOR

Message ID 1529693004-20569-2-git-send-email-arend.vanspriel@broadcom.com (mailing list archive)
State Changes Requested
Delegated to: Kalle Valo
Headers show

Commit Message

Arend van Spriel June 22, 2018, 6:43 p.m. UTC
Commit 19f505aa3ae0 ("brcmfmac: detect firmware support for monitor
interface") introduced a fallback mechanism attempting BRCMF_C_MONITOR
command. However, that does not indicate firmware support. Unfortunately,
it only indicates the core part of the stack supports it, but not whether
it is supported in full-dongle mode, ie. firmware has means to transfer
the monitor packets to the host. Firmwares that return the "monitor"
flag in the "cap" iovar are able to send the packets to the host.

Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
---
 .../wireless/broadcom/brcm80211/brcmfmac/feature.c | 25 ----------------------
 1 file changed, 25 deletions(-)

Comments

Kalle Valo June 29, 2018, 6:55 a.m. UTC | #1
Arend Van Spriel <arend.vanspriel@broadcom.com> wrote:

> Commit 19f505aa3ae0 ("brcmfmac: detect firmware support for monitor
> interface") introduced a fallback mechanism attempting BRCMF_C_MONITOR
> command. However, that does not indicate firmware support. Unfortunately,
> it only indicates the core part of the stack supports it, but not whether
> it is supported in full-dongle mode, ie. firmware has means to transfer
> the monitor packets to the host. Firmwares that return the "monitor"
> flag in the "cap" iovar are able to send the packets to the host.
> 
> Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>

Dropping per Arend's request

6 patches set to Changes Requested.

10482829 [1/6] brcmfmac: remove fallback mechanism for BRCMF_FEAT_MONITOR
10482837 [2/6] brcmfmac: rename BRCMF_FEAT_MONITOR_FMT_RADIOTAP to BRCMF_FEAT_RADIOTAP
10482833 [3/6] brcmfmac: fix for proper support of 160MHz bandwidth
10482835 [4/6] brcmfmac: increase buffer for obtaining firmware capabilities
10482827 [5/6] brcmfmac: add new feature flags for monitor mode operation
10482831 [6/6] brcmfmac: fallback mechanism to determine monitor mode features
diff mbox

Patch

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
index 48d7978..a78b9ba 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
@@ -92,26 +92,6 @@  static int brcmf_feat_debugfs_read(struct seq_file *seq, void *data)
 }
 #endif /* DEBUG */
 
-static void brcmf_feat_cmd_int_get(struct brcmf_if *ifp, enum brcmf_feat_id id,
-				   u32 cmd)
-{
-	u32 data;
-	int err;
-
-	ifp->fwil_fwerr = true;
-
-	err = brcmf_fil_cmd_int_get(ifp, cmd, &data);
-	if (err == 0) {
-		brcmf_dbg(INFO, "enabling feature: %s\n", brcmf_feat_names[id]);
-		ifp->drvr->feat_flags |= BIT(id);
-	} else {
-		brcmf_dbg(TRACE, "%s feature check failed: %d\n",
-			  brcmf_feat_names[id], err);
-	}
-
-	ifp->fwil_fwerr = false;
-}
-
 /**
  * brcmf_feat_iovar_int_get() - determine feature through iovar query.
  *
@@ -272,11 +252,6 @@  void brcmf_feat_attach(struct brcmf_pub *drvr)
 	}
 	brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_FWSUP, "sup_wpa");
 
-	/* Fallback detection for older firmwares */
-	if (!brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MONITOR))
-		brcmf_feat_cmd_int_get(ifp, BRCMF_FEAT_MONITOR,
-				       BRCMF_C_GET_MONITOR);
-
 	/* set chip related quirks */
 	switch (drvr->bus_if->chip) {
 	case BRCM_CC_43236_CHIP_ID: