• Gustavo A. R. Silva's avatar
    can: mark expected switch fall-throughs · b07fbf23
    Gustavo A. R. Silva authored
    In preparation to enabling -Wimplicit-fallthrough, mark switch cases
    where we are expecting to fall through.
    
    This patch fixes the following warnings:
    
    drivers/net/can/peak_canfd/peak_pciefd_main.c:668:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
    drivers/net/can/spi/mcp251x.c:875:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
    drivers/net/can/usb/peak_usb/pcan_usb.c:422:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
    drivers/net/can/at91_can.c:895:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
    drivers/net/can/at91_can.c:953:15: warning: this statement may fall through [-Wimplicit-fallthrough=]
    drivers/net/can/usb/peak_usb/pcan_usb.c: In function ‘pcan_usb_decode_error’:
    drivers/net/can/usb/peak_usb/pcan_usb.c:422:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
       if (n & PCAN_USB_ERROR_BUS_LIGHT) {
          ^
    drivers/net/can/usb/peak_usb/pcan_usb.c:428:2: note: here
      case CAN_STATE_ERROR_WARNING:
      ^~~~
    
    Warning level 3 was used: -Wimplicit-fallthrough=3
    
    This patch is part of the ongoing efforts to enabling
    -Wimplicit-fallthrough.
    
    Notice that in some cases spelling mistakes were fixed.
    In other cases, the /* fall through */ comment is placed
    at the bottom of the case statement, which is what GCC
    is expecting to find.
    Signed-off-by: default avatarGustavo A. R. Silva <gustavo@embeddedor.com>
    Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> # for the at91_can.c
    Signed-off-by: default avatarMarc Kleine-Budde <mkl@pengutronix.de>
    b07fbf23
at91_can.c 34.5 KB