Re: [PATCH 117/141] rtl8xxxu: Fix fall-through warnings for Clang
From: Jes Sorensen <jes.sorensen@gmail.com>
Date: 2020-11-20 21:40:07
Also in:
linux-hardening, linux-wireless, lkml
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
quoted hunk ↗ jump to hunk
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++;