Re: [PATCH] x86: Add a turbo mode sysctl

From: kbuild test robot
Date: Fri Apr 01 2016 - 12:09:20 EST


Hi Andy,

[auto build test WARNING on tip/x86/core]
[also build test WARNING on v4.6-rc1 next-20160401]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url: https://github.com/0day-ci/linux/commits/Andy-Lutomirski/x86-Add-a-turbo-mode-sysctl/20160401-235300
config: i386-randconfig-s1-201613 (attached as .config)
reproduce:
# save the attached .config to linux build tree
make ARCH=i386

All warnings (new ones prefixed by >>):

>> arch/x86/mm/pat.c:224:25: warning: 'turbo_mode_table' defined but not used [-Wunused-variable]
static struct ctl_table turbo_mode_table[] = {
^

vim +/turbo_mode_table +224 arch/x86/mm/pat.c

208 void __user *buffer, size_t *lenp,
209 loff_t *ppos)
210 {
211 int error;
212
213 error = proc_dointvec_minmax(table, write, buffer, lenp, ppos);
214 if (error)
215 return error;
216
217 if (write)
218 update_turbo_mode();
219
220 return 0;
221 }
222
223 static int zero, one = 1;
> 224 static struct ctl_table turbo_mode_table[] = {
225 {
226 .procname = "turbo_mode",
227 .data = &turbo_mode,
228 .maxlen = sizeof(int),
229 .mode = 0644,
230 .proc_handler = turbo_mode_handler,
231 .extra1 = &zero,
232 .extra2 = &one,

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