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Input: Fix fall-through warning for Clang 

In preparation to enable -Wimplicit-fallthrough for Clang, fix a
warning by explicitly adding a fallthrough; statement.

Notice that this seems to be a Duff device for performance[1]. So,
although the code looks a bit _funny_, I didn't want to refactor
or modify it beyond merely adding a fallthrough marking, which
might be the least disruptive way to fix this issue.

[1] https://www.drdobbs.com/a-reusable-duff-device/184406208

Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
This commit is contained in:
Gustavo A. R. Silva 2021-07-06 16:05:26 -05:00
parent 4e1c8c17ff
commit f1469e568b
1 changed files with 1 additions and 0 deletions
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1
drivers/input/joystick/sidewinder.c
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@ -660,6 +660,7 @@ static int sw_connect(struct gameport *gameport, struct gameport_driver *drv)
fallthrough;
case 45: /* Ambiguous packet length */
if (j <= 40) { /* ID length less or eq 40 -> FSP */
fallthrough;
case 43:
sw->type = SW_ID_FSP;
break;