[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <20181101005502.9171-1-natechancellor@gmail.com>
Date: Wed, 31 Oct 2018 17:55:02 -0700
From: Nathan Chancellor <natechancellor@...il.com>
To: Alessandro Zummo <a.zummo@...ertech.it>,
Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc: linux-rtc@...r.kernel.org, linux-kernel@...r.kernel.org,
Nick Desaulniers <ndesaulniers@...gle.com>,
Nathan Chancellor <natechancellor@...il.com>
Subject: [PATCH] rtc: omap: Use define directive for PIN_CONFIG_ACTIVE_HIGH
Clang warns when one enumerated type is implicitly converted to another:
drivers/rtc/rtc-omap.c:574:21: warning: implicit conversion from
enumeration type 'enum rtc_pin_config_param' to different enumeration
type 'enum pin_config_param' [-Wenum-conversion]
{"ti,active-high", PIN_CONFIG_ACTIVE_HIGH, 0},
~ ^~~~~~~~~~~~~~~~~~~~~~
drivers/rtc/rtc-omap.c:579:12: warning: implicit conversion from
enumeration type 'enum rtc_pin_config_param' to different enumeration
type 'enum pin_config_param' [-Wenum-conversion]
PCONFDUMP(PIN_CONFIG_ACTIVE_HIGH, "input active high", NULL, false),
~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./include/linux/pinctrl/pinconf-generic.h:163:11: note: expanded from
macro 'PCONFDUMP'
.param = a, .display = b, .format = c, .has_arg = d \
^
2 warnings generated.
It is expected that pinctrl drivers can extend pin_config_param because
of the gap between PIN_CONFIG_END and PIN_CONFIG_MAX so this conversion
isn't an issue. Most drivers that take advantage of this define the
PIN_CONFIG variables as constants, rather than enumerated values. Do the
same thing here so that Clang no longer warns.
Link: https://github.com/ClangBuiltLinux/linux/issues/144
Signed-off-by: Nathan Chancellor <natechancellor@...il.com>
---
drivers/rtc/rtc-omap.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c
index 320b4a520eb3..bbff0e2deb84 100644
--- a/drivers/rtc/rtc-omap.c
+++ b/drivers/rtc/rtc-omap.c
@@ -566,9 +566,7 @@ static const struct pinctrl_ops rtc_pinctrl_ops = {
.dt_free_map = pinconf_generic_dt_free_map,
};
-enum rtc_pin_config_param {
- PIN_CONFIG_ACTIVE_HIGH = PIN_CONFIG_END + 1,
-};
+#define PIN_CONFIG_ACTIVE_HIGH (PIN_CONFIG_END + 1)
static const struct pinconf_generic_params rtc_params[] = {
{"ti,active-high", PIN_CONFIG_ACTIVE_HIGH, 0},
--
2.19.1
Powered by blists - more mailing lists