| Message ID | d522f387b2d0dde774785c7169c1f25aa529989d.1605896060.git.gustavoars@kernel.org (mailing list archive) |
|---|---|
| State | Not Applicable |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | Fix fall-through warnings for Clang | expand |
On 11/20/20 1:38 PM, Gustavo A. R. Silva wrote: > In preparation to enable -Wimplicit-fallthrough for Clang, fix > multiple warnings by replacing /* fall through */ comments with > the new pseudo-keyword macro fallthrough; instead of letting the > code fall through to the next case. > > Notice that Clang doesn't recognize /* fall through */ comments as > implicit fall-through markings. > > Link: https://github.com/KSPP/linux/issues/115 > Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> > --- > drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) While I wasn't CC'ed on the cover-letter I see Jakub also raised issues about this unnecessary patch noise. Quite frankly, this seems to be patch churn for the sake of patch churn. If clang is broken, fix clang instead. NACK Jes > diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c > index 5cd7ef3625c5..afc97958fa4d 100644 > --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c > +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c > @@ -1145,7 +1145,7 @@ void rtl8xxxu_gen1_config_channel(struct ieee80211_hw *hw) > switch (hw->conf.chandef.width) { > case NL80211_CHAN_WIDTH_20_NOHT: > ht = false; > - /* fall through */ > + fallthrough; > case NL80211_CHAN_WIDTH_20: > opmode |= BW_OPMODE_20MHZ; > rtl8xxxu_write8(priv, REG_BW_OPMODE, opmode); > @@ -1272,7 +1272,7 @@ void rtl8xxxu_gen2_config_channel(struct ieee80211_hw *hw) > switch (hw->conf.chandef.width) { > case NL80211_CHAN_WIDTH_20_NOHT: > ht = false; > - /* fall through */ > + fallthrough; > case NL80211_CHAN_WIDTH_20: > rf_mode_bw |= WMAC_TRXPTCL_CTL_BW_20; > subchannel = 0; > @@ -1741,11 +1741,11 @@ static int rtl8xxxu_identify_chip(struct rtl8xxxu_priv *priv) > case 3: > priv->ep_tx_low_queue = 1; > priv->ep_tx_count++; > - /* fall through */ > + fallthrough; > case 2: > priv->ep_tx_normal_queue = 1; > priv->ep_tx_count++; > - /* fall through */ > + fallthrough; > case 1: > priv->ep_tx_high_queue = 1; > priv->ep_tx_count++; >
On Fri, Nov 20, 2020 at 04:39:42PM -0500, Jes Sorensen wrote: > On 11/20/20 1:38 PM, Gustavo A. R. Silva wrote: > > In preparation to enable -Wimplicit-fallthrough for Clang, fix > > multiple warnings by replacing /* fall through */ comments with > > the new pseudo-keyword macro fallthrough; instead of letting the > > code fall through to the next case. > > > > Notice that Clang doesn't recognize /* fall through */ comments as > > implicit fall-through markings. > > > > Link: https://github.com/KSPP/linux/issues/115 > > Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> > > --- > > drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 8 ++++---- > > 1 file changed, 4 insertions(+), 4 deletions(-) > > While I wasn't CC'ed on the cover-letter I see Jakub also raised issues > about this unnecessary patch noise. > > Quite frankly, this seems to be patch churn for the sake of patch churn. > If clang is broken, fix clang instead. Just notice that the idea behind this and the following patch is exactly the same: https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next.git/commit/?id=3f95e92c8a8516b745594049dfccc8c5f8895eea I could resend this same patch with a different changelog text, but I don't think such a thing is necessary. However, if people prefer that approach, just let me know and I can do it. Thanks -- Gustavo > > diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c > > index 5cd7ef3625c5..afc97958fa4d 100644 > > --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c > > +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c > > @@ -1145,7 +1145,7 @@ void rtl8xxxu_gen1_config_channel(struct ieee80211_hw *hw) > > switch (hw->conf.chandef.width) { > > case NL80211_CHAN_WIDTH_20_NOHT: > > ht = false; > > - /* fall through */ > > + fallthrough; > > case NL80211_CHAN_WIDTH_20: > > opmode |= BW_OPMODE_20MHZ; > > rtl8xxxu_write8(priv, REG_BW_OPMODE, opmode); > > @@ -1272,7 +1272,7 @@ void rtl8xxxu_gen2_config_channel(struct ieee80211_hw *hw) > > switch (hw->conf.chandef.width) { > > case NL80211_CHAN_WIDTH_20_NOHT: > > ht = false; > > - /* fall through */ > > + fallthrough; > > case NL80211_CHAN_WIDTH_20: > > rf_mode_bw |= WMAC_TRXPTCL_CTL_BW_20; > > subchannel = 0; > > @@ -1741,11 +1741,11 @@ static int rtl8xxxu_identify_chip(struct rtl8xxxu_priv *priv) > > case 3: > > priv->ep_tx_low_queue = 1; > > priv->ep_tx_count++; > > - /* fall through */ > > + fallthrough; > > case 2: > > priv->ep_tx_normal_queue = 1; > > priv->ep_tx_count++; > > - /* fall through */ > > + fallthrough; > > case 1: > > priv->ep_tx_high_queue = 1; > > priv->ep_tx_count++; > > >
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c index 5cd7ef3625c5..afc97958fa4d 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c @@ -1145,7 +1145,7 @@ void rtl8xxxu_gen1_config_channel(struct ieee80211_hw *hw) switch (hw->conf.chandef.width) { case NL80211_CHAN_WIDTH_20_NOHT: ht = false; - /* fall through */ + fallthrough; case NL80211_CHAN_WIDTH_20: opmode |= BW_OPMODE_20MHZ; rtl8xxxu_write8(priv, REG_BW_OPMODE, opmode); @@ -1272,7 +1272,7 @@ void rtl8xxxu_gen2_config_channel(struct ieee80211_hw *hw) switch (hw->conf.chandef.width) { case NL80211_CHAN_WIDTH_20_NOHT: ht = false; - /* fall through */ + fallthrough; case NL80211_CHAN_WIDTH_20: rf_mode_bw |= WMAC_TRXPTCL_CTL_BW_20; subchannel = 0; @@ -1741,11 +1741,11 @@ static int rtl8xxxu_identify_chip(struct rtl8xxxu_priv *priv) case 3: priv->ep_tx_low_queue = 1; priv->ep_tx_count++; - /* fall through */ + fallthrough; case 2: priv->ep_tx_normal_queue = 1; priv->ep_tx_count++; - /* fall through */ + fallthrough; case 1: priv->ep_tx_high_queue = 1; priv->ep_tx_count++;
In preparation to enable -Wimplicit-fallthrough for Clang, fix multiple warnings by replacing /* fall through */ comments with the new pseudo-keyword macro fallthrough; instead of letting the code fall through to the next case. Notice that Clang doesn't recognize /* fall through */ comments as implicit fall-through markings. Link: https://github.com/KSPP/linux/issues/115 Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> --- drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)