From: YueHaibing <yuehaibing@xxxxxxxxxx> commit 9800db282dff675dd700d5985d90b605c34b5ccd upstream. Commit aad14ad3cf3a ("intel_th: msu: Add current window tracking") added the following gcc warning: > drivers/hwtracing/intel_th/msu.c: In function msc_win_switch: > drivers/hwtracing/intel_th/msu.c:1389:21: warning: variable last set but > not used [-Wunused-but-set-variable] Fix it by removing the variable. Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx> Fixes: aad14ad3cf3a ("intel_th: msu: Add current window tracking") Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Signed-off-by: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx> Cc: stable <stable@xxxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20190621161930.60785-3-alexander.shishkin@xxxxxxxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/hwtracing/intel_th/msu.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/drivers/hwtracing/intel_th/msu.c +++ b/drivers/hwtracing/intel_th/msu.c @@ -1400,10 +1400,9 @@ static int intel_th_msc_init(struct msc static void msc_win_switch(struct msc *msc) { - struct msc_window *last, *first; + struct msc_window *first; first = list_first_entry(&msc->win_list, struct msc_window, entry); - last = list_last_entry(&msc->win_list, struct msc_window, entry); if (msc_is_last_win(msc->cur_win)) msc->cur_win = first;