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| author | Alexander Aring <alex.aring@gmail.com> | 2015-05-17 21:44:44 +0200 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2015-05-19 11:44:42 +0200 |
| commit | 791021bf13ec9d0fc14bfd8c9c4b368ace568239 (patch) | |
| tree | 5e5bb4fe5815f959379b94e89194c7d5fecf5e12 /net/mac802154/cfg.c | |
| parent | fea3318d20776a94afeea0460c6ee9904e60569e (diff) | |
| download | linux-791021bf13ec9d0fc14bfd8c9c4b368ace568239.tar.bz2 | |
mac802154: check for really changes
This patch adds check if the value is really changed inside pib/mib.
If a transceiver do support only one value for e.g. max_be then this
will also handle that the driver layer doesn't need to care about
handling to set one value only.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/mac802154/cfg.c')
| -rw-r--r-- | net/mac802154/cfg.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/net/mac802154/cfg.c b/net/mac802154/cfg.c index c63601582c71..45c4dc39766e 100644 --- a/net/mac802154/cfg.c +++ b/net/mac802154/cfg.c @@ -73,6 +73,10 @@ ieee802154_set_channel(struct wpan_phy *wpan_phy, u8 page, u8 channel) ASSERT_RTNL(); + if (wpan_phy->current_page == page && + wpan_phy->current_channel == channel) + return 0; + ret = drv_set_channel(local, page, channel); if (!ret) { wpan_phy->current_page = page; @@ -91,6 +95,9 @@ ieee802154_set_cca_mode(struct wpan_phy *wpan_phy, ASSERT_RTNL(); + if (wpan_phy_cca_cmp(&wpan_phy->cca, cca)) + return 0; + /* check if phy support this setting */ if (!(local->hw.flags & IEEE802154_HW_CCA_MODE)) return -EOPNOTSUPP; @@ -108,6 +115,9 @@ ieee802154_set_pan_id(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, { ASSERT_RTNL(); + if (wpan_dev->pan_id == pan_id) + return 0; + wpan_dev->pan_id = pan_id; return 0; } @@ -121,6 +131,10 @@ ieee802154_set_backoff_exponent(struct wpan_phy *wpan_phy, ASSERT_RTNL(); + if (wpan_dev->min_be == min_be && + wpan_dev->max_be == max_be) + return 0; + if (!(local->hw.flags & IEEE802154_HW_CSMA_PARAMS)) return -EOPNOTSUPP; @@ -135,6 +149,9 @@ ieee802154_set_short_addr(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, { ASSERT_RTNL(); + if (wpan_dev->short_addr == short_addr) + return 0; + wpan_dev->short_addr = short_addr; return 0; } @@ -148,6 +165,9 @@ ieee802154_set_max_csma_backoffs(struct wpan_phy *wpan_phy, ASSERT_RTNL(); + if (wpan_dev->csma_retries == max_csma_backoffs) + return 0; + if (!(local->hw.flags & IEEE802154_HW_CSMA_PARAMS)) return -EOPNOTSUPP; @@ -164,6 +184,9 @@ ieee802154_set_max_frame_retries(struct wpan_phy *wpan_phy, ASSERT_RTNL(); + if (wpan_dev->frame_retries == max_frame_retries) + return 0; + if (!(local->hw.flags & IEEE802154_HW_FRAME_RETRIES)) return -EOPNOTSUPP; @@ -179,6 +202,9 @@ ieee802154_set_lbt_mode(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, ASSERT_RTNL(); + if (wpan_dev->lbt == mode) + return 0; + if (!(local->hw.flags & IEEE802154_HW_LBT)) return -EOPNOTSUPP; |