Messages in this thread Patch in this message | | | Date | Tue, 12 Feb 2019 11:43:18 -0600 | From | "Gustavo A. R. Silva" <> | Subject | [PATCH] parport: ieee1284: mark expected switch fall-through |
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In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through.
This patch fixes the following warning:
drivers/parport/ieee1284.c: In function ‘parport_read’: drivers/parport/ieee1284.c:722:6: warning: this statement may fall through [-Wimplicit-fallthrough=] if (parport_negotiate (port, IEEE1284_MODE_NIBBLE)) { ^ drivers/parport/ieee1284.c:726:2: note: here case IEEE1284_MODE_NIBBLE: ^~~~
Warning level 3 was used: -Wimplicit-fallthrough=3
Notice that, in this particular case, the code comment is modified in accordance with what GCC is expecting to find.
This patch is part of the ongoing efforts to enable -Wimplicit-fallthrough.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> --- drivers/parport/ieee1284.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/parport/ieee1284.c b/drivers/parport/ieee1284.c index f12b9da69255..90fb73575495 100644 --- a/drivers/parport/ieee1284.c +++ b/drivers/parport/ieee1284.c @@ -722,7 +722,7 @@ ssize_t parport_read (struct parport *port, void *buffer, size_t len) if (parport_negotiate (port, IEEE1284_MODE_NIBBLE)) { return -EIO; } - /* fall through to NIBBLE */ + /* fall through - to NIBBLE */ case IEEE1284_MODE_NIBBLE: DPRINTK (KERN_DEBUG "%s: Using nibble mode\n", port->name); fn = port->ops->nibble_read_data; -- 2.20.1
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