[U-Boot] [PATCH 4/5] treewide: convert assert() to BUG_ON()

Masahiro Yamada yamada.masahiro at socionext.com
Wed Nov 29 14:17:01 UTC 2017


Hi Simon,


2017-11-29 22:08 GMT+09:00 Simon Glass <sjg at chromium.org>:
> Hi Masahiro,
>
> On 28 November 2017 at 05:23, Masahiro Yamada
> <yamada.masahiro at socionext.com> wrote:
>> We do not need multiple ways to do the same thing.  Instead of
>> assert(), use BUG_ON() from Linux.  The logic is opposite, but
>> Coccinelle is of great help for such a conversion.  We could
>> simply convert assert(x) to BUG_ON(!x) for all expressions "x",
>> but I did a bit better job by converting assert(a == b) to
>> BUG_ON(a != b), etc.
>
> My reading of BUG_ON() is that it does not compile to nothing when
> DEBUG is not set, unlike assert(). So they do not seem to be
> equivalent.
>


Tom suggested to add an option to make BUG_ON() to nothing by default:
https://patchwork.ozlabs.org/cover/842165/

With the option, they will be equivalent.



-- 
Best Regards
Masahiro Yamada


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