package/kernel/mac80211/patches/370-0012-brcmfmac-Add-module-parameter-to-disable-features.patch

   1 From: Hante Meuleman <meuleman@broadcom.com>
   2 Date: Fri, 18 Sep 2015 22:08:15 +0200
   3 Subject: [PATCH] brcmfmac: Add module parameter to disable features.
   4
   5 For debugging purpose it is very handy to be able to disable
   6 features. It has happened a few times that new features turned
   7 out not always being properly detected for all devices/firmwares.
   8 Making it possible to disable the feature with a module parameter
   9 will make testing/debugging easier.
  10
  11 Reviewed-by: Arend Van Spriel <arend@broadcom.com>
  12 Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
  13 Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
  14 Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
  15 Signed-off-by: Arend van Spriel <arend@broadcom.com>
  16 Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
  17 ---
  18
  19 --- a/drivers/net/wireless/brcm80211/brcmfmac/feature.c
  20 +++ b/drivers/net/wireless/brcm80211/brcmfmac/feature.c
  21 @@ -15,6 +15,7 @@
  22   */
  23
  24  #include <linux/netdevice.h>
  25 +#include <linux/module.h>
  26
  27  #include <brcm_hw_ids.h>
  28  #include "core.h"
  29 @@ -23,6 +24,12 @@
  30  #include "fwil.h"
  31  #include "feature.h"
  32
  33 +
  34 +/* Module param feature_disable (global for all devices) */
  35 +static int brcmf_feature_disable;
  36 +module_param_named(feature_disable, brcmf_feature_disable, int, 0);
  37 +MODULE_PARM_DESC(feature_disable, "Disable features");
  38 +
  39  /*
  40   * expand feature list to array of feature strings.
  41   */
  42 @@ -131,6 +138,12 @@ void brcmf_feat_attach(struct brcmf_pub
  43                 brcmf_feat_iovar_int_set(ifp, BRCMF_FEAT_MBSS, "mbss", 0);
  44         brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_P2P, "p2p");
  45
  46 +       if (brcmf_feature_disable) {
  47 +               brcmf_dbg(INFO, "Features: 0x%02x, disable: 0x%02x\n",
  48 +                         ifp->drvr->feat_flags, brcmf_feature_disable);
  49 +               ifp->drvr->feat_flags &= ~brcmf_feature_disable;
  50 +       }
  51 +
  52         /* set chip related quirks */
  53         switch (drvr->bus_if->chip) {
  54         case BRCM_CC_43236_CHIP_ID: