From: Andrew Morton You don't know what type a u64 is, hence you cannot print it without a cast. Cc: Greg KH Signed-off-by: Andrew Morton --- drivers/w1/w1.c | 7 +++++-- 1 files changed, 5 insertions(+), 2 deletions(-) diff -puN drivers/w1/w1.c~w1-u64-is-not-long-long drivers/w1/w1.c --- 25-alpha/drivers/w1/w1.c~w1-u64-is-not-long-long 2006-01-14 00:04:29.000000000 -0800 +++ 25-alpha-akpm/drivers/w1/w1.c 2006-01-14 00:05:08.000000000 -0800 @@ -388,11 +388,14 @@ static int w1_uevent(struct device *dev, if (dev->driver != &w1_slave_driver || !sl) return 0; - err = add_uevent_var(envp, num_envp, &cur_index, buffer, buffer_size, &cur_len, "W1_FID=%02X", sl->reg_num.family); + err = add_uevent_var(envp, num_envp, &cur_index, buffer, buffer_size, + &cur_len, "W1_FID=%02X", sl->reg_num.family); if (err) return err; - err = add_uevent_var(envp, num_envp, &cur_index, buffer, buffer_size, &cur_len, "W1_SLAVE_ID=%024LX", (u64)sl->reg_num.id); + err = add_uevent_var(envp, num_envp, &cur_index, buffer, buffer_size, + &cur_len, "W1_SLAVE_ID=%024LX", + (unsigned long long)sl->reg_num.id); if (err) return err; _