On Tue, Apr 15, 2025 at 03:06:45PM +0300, Andy Shevchenko wrote: > On Tue, Apr 15, 2025 at 06:39:03AM -0500, Corey Minyard wrote: > > On Tue, Apr 15, 2025 at 11:51:56AM +0300, Andy Shevchenko wrote: > > > Debian clang version 19.1.7 is not happy when compiled with > > > `make W=1` (note, CONFIG_WERROR=y is the default): > > > > > > ipmi_si_platform.c:268:15: error: cast to smaller integer type 'enum > > > si_type' from 'const void *' [-Werror,-Wvoid-pointer-to-enum-cast] > > > 268 | io.si_type = (enum > > > si_type)device_get_match_data(&pdev->dev); > > > > > > Fix this by intermediate cast to the uintptr_t, that makes compiler happy. > > > > Unless things have changed recently, Linus prefers "unsigned long" per > > https://patchwork.kernel.org/project/linux-hardening/patch/20220616143617.449094-1-ja...@zx2c4.com/#24899749 > > I'm not sure I got your point. That discussion seems irrelevant to me. > They are talking about pointer-as-an-integer cases. Here we already know > that we are passing integer-as-a-pointer and this is the opposite > conversion. > > > And it would match what is in the match table. > > Match tables are tend to move to pointers, enum is usually goes to int. > > > Is that change ok? > > If you don't like my change, please do yours and consider this as > a bug report that needs to be addressed. I prefer more my solution > as we do that in many places for the exact scenario.
Note, the proper solution to the cases like this is to move to info-like structure and actually operate with the pointers instead of enums, longs, etc. That's what's slowly moving on in IIO subsystem, for instance. -- With Best Regards, Andy Shevchenko _______________________________________________ Openipmi-developer mailing list Openipmi-developer@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/openipmi-developer
