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Annotate switch-case fall through

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Quiets warnings like:
  drivers/dahdi/dahdi-base.c:8494:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
     if (chan->txstate != DAHDI_TXSTATE_OFFHOOK) break;
        ^

Needed since Linux 5.4 commit (a035d552a93bb9ef60487, "Makefile: Globally enable
fall-33bb9f2a0dc857ff869through warning") [1]

[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a035d552a93bb9ef6048733bb9f2a0dc857

Signed-off-by: Shaun Ruffell <sruffell@sruffell.net>
This commit is contained in:
Shaun Ruffell 2019-09-24 20:12:36 -05:00
parent 45ac6a30f9
commit 6e5197fed4
3 changed files with 14 additions and 7 deletions
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6
drivers/dahdi/dahdi-base.c
View File

@ -7943,7 +7943,7 @@ static inline void __dahdi_process_getaudio_chunk(struct dahdi_chan *ss, unsigne
memset(getlin, 0, DAHDI_CHUNKSIZE * sizeof(short));
txb[0] = DAHDI_LIN2X(0, ms);
memset(txb + 1, txb[0], DAHDI_CHUNKSIZE - 1);
/* fall through to normal conf mode */
/* fallthrough */
case DAHDI_CONF_CONF: /* Normal conference mode */
if (is_pseudo_chan(ms)) /* if pseudo-channel */
{
@ -8506,7 +8506,7 @@ static void __dahdi_hooksig_pvt(struct dahdi_chan *chan, enum dahdi_rxsig rxsig)
break;
}
#endif
/* fall through intentionally */
/* fallthrough */
case DAHDI_SIG_FXSGS: /* FXS Groundstart */
if (rxsig == DAHDI_RXSIG_ONHOOK) {
chan->ringdebtimer = RING_DEBOUNCE_TIME;
@ -8525,7 +8525,7 @@ static void __dahdi_hooksig_pvt(struct dahdi_chan *chan, enum dahdi_rxsig rxsig)
chan->gotgs = 1;
}
}
/* fall through intentionally */
/* fallthrough */
case DAHDI_SIG_FXOLS: /* FXO Loopstart */
case DAHDI_SIG_FXOKS: /* FXO Kewlstart */
switch(rxsig) {

8
drivers/dahdi/wcaxx-base.c
View File

@ -1452,11 +1452,13 @@ wcaxx_check_battery_lost(struct wcaxx *wc, struct wcaxx_module *const mod)
break;
case BATTERY_UNKNOWN:
mod_hooksig(wc, mod, DAHDI_RXSIG_ONHOOK);
/* fallthrough */
case BATTERY_PRESENT:
fxo->battery_state = BATTERY_DEBOUNCING_LOST;
fxo->battdebounce_timer = wc->framecount + battdebounce;
break;
case BATTERY_DEBOUNCING_LOST_FROM_PRESENT_ALARM:
/* fallthrough */
case BATTERY_DEBOUNCING_LOST: /* Intentional drop through */
if (time_after(wc->framecount, fxo->battdebounce_timer)) {
if (debug) {
@ -1507,7 +1509,8 @@ wcaxx_check_battery_present(struct wcaxx *wc, struct wcaxx_module *const mod)
switch (fxo->battery_state) {
case BATTERY_DEBOUNCING_PRESENT_FROM_LOST_ALARM:
case BATTERY_DEBOUNCING_PRESENT: /* intentional drop through */
/* fallthrough */
case BATTERY_DEBOUNCING_PRESENT:
if (time_after(wc->framecount, fxo->battdebounce_timer)) {
if (debug) {
dev_info(&wc->xb.pdev->dev,
@ -1560,7 +1563,8 @@ wcaxx_check_battery_present(struct wcaxx *wc, struct wcaxx_module *const mod)
break;
case BATTERY_UNKNOWN:
mod_hooksig(wc, mod, DAHDI_RXSIG_OFFHOOK);
case BATTERY_LOST: /* intentional drop through */
/* fallthrough */
case BATTERY_LOST:
fxo->battery_state = BATTERY_DEBOUNCING_PRESENT;
fxo->battdebounce_timer = wc->framecount + battdebounce;
break;

7
drivers/dahdi/wctdm24xxp/base.c
View File

@ -1955,12 +1955,14 @@ wctdm_check_battery_lost(struct wctdm *wc, struct wctdm_module *const mod)
break;
case BATTERY_UNKNOWN:
mod_hooksig(wc, mod, DAHDI_RXSIG_ONHOOK);
/* fallthrough */
case BATTERY_PRESENT:
fxo->battery_state = BATTERY_DEBOUNCING_LOST;
fxo->battdebounce_timer = wc->framecount + battdebounce;
break;
case BATTERY_DEBOUNCING_LOST_FROM_PRESENT_ALARM:
case BATTERY_DEBOUNCING_LOST: /* Intentional drop through */
/* fallthrough */
case BATTERY_DEBOUNCING_LOST:
if (time_after(wc->framecount, fxo->battdebounce_timer)) {
if (debug) {
dev_info(&wc->vb.pdev->dev,
@ -2063,7 +2065,8 @@ wctdm_check_battery_present(struct wctdm *wc, struct wctdm_module *const mod)
break;
case BATTERY_UNKNOWN:
mod_hooksig(wc, mod, DAHDI_RXSIG_OFFHOOK);
case BATTERY_LOST: /* intentional drop through */
/* fallthrough */
case BATTERY_LOST:
fxo->battery_state = BATTERY_DEBOUNCING_PRESENT;
fxo->battdebounce_timer = wc->framecount + battdebounce;
break;