Thread (2 messages) 2 messages, 2 authors, 2017-01-11

[rtc-linux] Re: [PATCH] rtc: constify rtc_class_ops structures

From: Alexandre Belloni <hidden>
Date: 2017-01-11 00:14:32
Also in: lkml

On 05/01/2017 at 22:25:05 +0530, Bhumika Goyal wrote :
Declare rtc_class_ops structures as const as they are only passed
as an argument to the function devm_rtc_device_register. This argument
is of type const struct rtc_class_ops *, so rtc_class_ops structures
having this property can be declared const.
Done using Coccinelle:

@r1 disable optional_qualifier @
identifier i;
position p;
@@
static struct rtc_class_ops i@p = {...};

@ok1@
identifier r1.i;
position p;
@@
devm_rtc_device_register(...,&i@p,...)

@bad@
position p!={r1.p,ok1.p};
identifier r1.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
+const
struct rtc_class_ops i;

File size details:

   text	   data	    bss	    dec	    hex	filename
    559	    320	      0	    879	    36f	drivers/rtc/rtc-dm355evm.o
    671	    192	      0	    863	    35f	drivers/rtc/rtc-dm355evm.o

   4727	    320	      0	   5047	   13b7	drivers/rtc/rtc-imxdi.o
   4855	    192	      0	   5047	   13b7	drivers/rtc/rtc-imxdi.o

   1269     192       0    1461     5b5 drivers/rtc/rtc-mxc.o

File size remains unchanged for : drivers/rtc/rtc-mxc.o

Signed-off-by: Bhumika Goyal <redacted>
---
 drivers/rtc/rtc-dm355evm.c | 2 +-
 drivers/rtc/rtc-imxdi.c    | 2 +-
 drivers/rtc/rtc-mxc.c      | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)
Applied, thanks.

-- 
Alexandre Belloni, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

-- 
You received this message because you are subscribed to "rtc-linux".
Membership options at http://groups.google.com/group/rtc-linux .
Please read http://groups.google.com/group/rtc-linux/web/checklist
before submitting a driver.
--- 
You received this message because you are subscribed to the Google Groups "rtc-linux" group.
To unsubscribe from this group and stop receiving emails from it, send an email to rtc-linux+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help