Re: [PATCH 0/2] OMAP: TWL: sparse fixes

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Nishanth Menon had written, on 01/03/2011 04:39 PM, the following:
Russell King - ARM Linux had written, on 01/03/2011 04:36 PM, the following:
On Mon, Jan 03, 2011 at 12:58:28PM -0600, Nishanth Menon wrote:
Source:
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6.git
branch: omap-for-linus

Doing a rm arch/arm/mach-omap2/*.o;make C=1 arch/arm/mach-omap2/
resulted in the following sparse warnings:
http://pastebin.mozilla.org/907954

FYI, you may like to try:

make C=2 arch/arm/mach-omap2/

instead of the two-step process:
| Do a kernel make with "make C=1" to run sparse on all the C files that get | recompiled, or use "make C=2" to run sparse on the files whether they need to | be recompiled or not. The latter is a fast way to check the whole tree if you
| have already built it.
Gee thanks. /me should update my old bash aliases :D
hmm.. minor nit (with codesourcery 2010.09-50 - 4.5.1):
rm arch/arm/mach-omap2/*.o;make C=1 arch/arm/mach-omap2/ 2>Kerr;make C=2 arch/arm/mach-omap2/ 2>Kerr1;diff Kerr Kerr1
[..]
1,4d0
< arch/arm/mach-omap2/mux.c: In function 'omap_mux_get_by_name':
< arch/arm/mach-omap2/mux.c:163:17: warning: 'found_mode' may be used uninitialized in this function
< arch/arm/mach-omap2/clkt_clksel.c: In function 'omap2_clksel_set_parent':
< arch/arm/mach-omap2/clkt_clksel.c:100:35: warning: 'max_clkr' may be used uninitialized in this function

Kinda interesting to note that C=2 does'nt list all potential gcc warnings :( if one wanted a collated list of all warnings, rm .../*.o helps I guess.

--
Regards,
Nishanth Menon
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