linux-kernel - [PATCH] staging: greybus: Clear up precedence for gcam logging macros

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Date: Wed,  3 Apr 2024 17:16:28 -0700
From: Jackson Chui <jacksonchui.qwerty@...il.com>
To: Johan Hovold <johan@...nel.org>,
	Alex Elder <elder@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	greybus-dev@...ts.linaro.org,
	linux-staging@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Cc: Jackson Chui <jacksonchui.qwerty@...il.com>
Subject: [PATCH] staging: greybus: Clear up precedence for gcam logging macros

Reported by checkpatch:

CHECK: Macro argument 'gcam' may be better as '(gcam)' to avoid
precedence issues

Disambiguates '&' (address-of) operator and '->' operator precedence,
accounting for how '(gcam)->bundle->dev' is a 'struct device' and not a
'struct device*', which is required by the dev_{dbg,info,err} driver
model diagnostic macros. Issue found by checkpatch.

Signed-off-by: Jackson Chui <jacksonchui.qwerty@...il.com>
---
 drivers/staging/greybus/camera.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/greybus/camera.c b/drivers/staging/greybus/camera.c
index a8173aa3a995..d82a2d2abdca 100644
--- a/drivers/staging/greybus/camera.c
+++ b/drivers/staging/greybus/camera.c
@@ -180,9 +180,9 @@ static const struct gb_camera_fmt_info *gb_camera_get_format_info(u16 gb_fmt)
 
 #define GB_CAMERA_MAX_SETTINGS_SIZE	8192
 
-#define gcam_dbg(gcam, format...)	dev_dbg(&gcam->bundle->dev, format)
-#define gcam_info(gcam, format...)	dev_info(&gcam->bundle->dev, format)
-#define gcam_err(gcam, format...)	dev_err(&gcam->bundle->dev, format)
+#define gcam_dbg(gcam, format...)	dev_dbg(&((gcam)->bundle->dev), format)
+#define gcam_info(gcam, format...)	dev_info(&((gcam)->bundle->dev), format)
+#define gcam_err(gcam, format...)	dev_err(&((gcam)->bundle->dev), format)
 
 static int gb_camera_operation_sync_flags(struct gb_connection *connection,
 					  int type, unsigned int flags,
-- 
2.34.1