Hi Peter, [auto build test WARNING on: v4.3-rc7] [also build test WARNING on: next-20151106] url: https://github.com/0day-ci/linux/commits/Peter-Hurley/tty-audit-Fix-audit-source/20151108-205330 config: x86_64-randconfig-x019-201545 (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): drivers/tty/n_tty.c: In function 'tty_copy_to_user': >> drivers/tty/n_tty.c:172:26: warning: passing argument 2 of 'tty_audit_add_data' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] tty_audit_add_data(tty, from, n, ldata->icanon); ^ In file included from drivers/tty/n_tty.c:40:0: include/linux/tty.h:616:20: note: expected 'unsigned char *' but argument is of type 'const void *' static inline void tty_audit_add_data(struct tty_struct *tty, ^ vim +172 drivers/tty/n_tty.c 156 static inline int tty_put_user(struct tty_struct *tty, unsigned char x, 157 unsigned char __user *ptr) 158 { 159 struct n_tty_data *ldata = tty->disc_data; 160 161 tty_audit_add_data(tty, &x, 1, ldata->icanon); 162 return put_user(x, ptr); 163 } 164 165 static inline int tty_copy_to_user(struct tty_struct *tty, 166 void __user *to, 167 const void *from, 168 unsigned long n) 169 { 170 struct n_tty_data *ldata = tty->disc_data; 171 > 172 tty_audit_add_data(tty, from, n, ldata->icanon); 173 return copy_to_user(to, from, n); 174 } 175 176 /** 177 * n_tty_kick_worker - start input worker (if required) 178 * @tty: terminal 179 * 180 * Re-schedules the flip buffer work if it may have stopped --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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