Re: [PATCH 04/15] video: fbdev: use permission-specific DEVICE_ATTR variants
From: Bartlomiej Zolnierkiewicz <hidden>
Date: 2017-01-11 16:06:59
Also in:
kernel-janitors, linux-arm-kernel, lkml
Hi, On Saturday, October 29, 2016 09:36:58 PM Julia Lawall wrote:
Use DEVICE_ATTR_RW for read-write attributes. This simplifies the source code, improves readbility, and reduces the chance of inconsistencies. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @rw@ declarer name DEVICE_ATTR; identifier x,x_show,x_store; @@ DEVICE_ATTR(x, \(0644\|S_IRUGO|S_IWUSR\), x_show, x_store); @script:ocaml@ x << rw.x; x_show << rw.x_show; x_store << rw.x_store; @@ if not (x^"_show" = x_show && x^"_store" = x_store) then Coccilib.include_match false @@ declarer name DEVICE_ATTR_RW; identifier rw.x,rw.x_show,rw.x_store; @@ - DEVICE_ATTR(x, \(0644\|S_IRUGO|S_IWUSR\), x_show, x_store); + DEVICE_ATTR_RW(x); // </smpl> Signed-off-by: Julia Lawall <redacted>
Thanks, patch queued for 4.11. Best regards, -- Bartlomiej Zolnierkiewicz Samsung R&D Institute Poland Samsung Electronics
quoted hunk ↗ jump to hunk
--- drivers/video/fbdev/wm8505fb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)diff --git a/drivers/video/fbdev/wm8505fb.c b/drivers/video/fbdev/wm8505fb.c index e925619..253ffe9 100644 --- a/drivers/video/fbdev/wm8505fb.c +++ b/drivers/video/fbdev/wm8505fb.c@@ -182,7 +182,7 @@ static ssize_t contrast_store(struct device *dev, return count; } -static DEVICE_ATTR(contrast, 0644, contrast_show, contrast_store); +static DEVICE_ATTR_RW(contrast); static inline u_int chan_to_field(u_int chan, struct fb_bitfield *bf) {