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SubjectRe: [PATCH 2/3] drivers: remoteproc: Add Hexagon Q6 - WCSS integrated core driver
Hi Sricharan,

[auto build test WARNING on linus/master]
[also build test WARNING on v4.12-rc7 next-20170630]
[cannot apply to remoteproc/for-next]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Sricharan-R/drivers-remoteproc-Make-mdt_loader-firmware-authentication-optional/20170702-123208
config: arm64-allmodconfig (attached as .config)
compiler: aarch64-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=arm64

Note: it may well be a FALSE warning. FWIW you are at least aware of it now.
http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings

All warnings (new ones prefixed by >>):

drivers//remoteproc/q6v5-wcss.c: In function 'q6_rproc_probe':
>> drivers//remoteproc/q6v5-wcss.c:126:14: warning: 'i' may be used uninitialized in this function [-Wmaybe-uninitialized]
qproc->clks[i++] = c;
^
drivers//remoteproc/q6v5-wcss.c:103:6: note: 'i' was declared here
int i;
^

vim +/i +126 drivers//remoteproc/q6v5-wcss.c

110 if (!qproc->clk_cnt)
111 return 0;
112
113 qproc->clks = devm_kzalloc(dev, sizeof(*qproc->clks) * qproc->clk_cnt,
114 GFP_KERNEL);
115
116 of_property_for_each_string(dev->of_node, "clock-names", prop, cname) {
117 struct clk *c = devm_clk_get(dev, cname);
118
119 if (IS_ERR_OR_NULL(c)) {
120 if (PTR_ERR(c) != -EPROBE_DEFER)
121 dev_err(dev, "Failed to get %s clock\n", cname);
122
123 return PTR_ERR(c);
124 }
125
> 126 qproc->clks[i++] = c;
127 }
128
129 return 0;
130 }
131
132 static int q6v5_clk_enable(struct q6v5 *qproc)
133 {
134 int rc;

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