Re: [PATCH] drm/gma500: dont expose bytes from kernel stack

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Hi Heinrich,

[auto build test ERROR on drm/drm-next]
[also build test ERROR on v4.8-rc3 next-20160822]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
[Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on]
[Check https://git-scm.com/docs/git-format-patch for more information]

url:    https://github.com/0day-ci/linux/commits/Heinrich-Schuchardt/drm-gma500-dont-expose-bytes-from-kernel-stack/20160822-024132
base:   git://people.freedesktop.org/~airlied/linux.git drm-next
config: x86_64-randconfig-x015-201634 (attached as .config)
compiler: gcc-6 (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   drivers/gpu/drm/gma500/oaktrail_crtc.c: In function 'mrst_sdvo_find_best_pll':
>> drivers/gpu/drm/gma500/oaktrail_crtc.c:141:9: error: incompatible type for argument 1 of 'memset'
     memset(clock, 0, sizeof(struct gma_clock_t));
            ^~~~~
   In file included from arch/x86/include/asm/string.h:4:0,
                    from include/linux/string.h:18,
                    from include/uapi/linux/uuid.h:21,
                    from include/linux/uuid.h:19,
                    from include/linux/mod_devicetable.h:12,
                    from include/linux/i2c.h:29,
                    from drivers/gpu/drm/gma500/oaktrail_crtc.c:18:
   arch/x86/include/asm/string_64.h:55:7: note: expected 'void *' but argument is of type 'struct gma_clock_t'
    void *memset(void *s, int c, size_t n);
          ^~~~~~

vim +/memset +141 drivers/gpu/drm/gma500/oaktrail_crtc.c

   135					    int refclk, struct gma_clock_t *best_clock)
   136	{
   137		struct gma_clock_t clock;
   138		u32 target_vco, actual_freq;
   139		s32 freq_error, min_error = 100000;
   140	
 > 141		memset(clock, 0, sizeof(struct gma_clock_t));
   142		memset(best_clock, 0, sizeof(*best_clock));
   143	
   144		for (clock.m = limit->m.min; clock.m <= limit->m.max; clock.m++) {

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

Attachment: .config.gz
Description: Binary data

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