cik_pcie_gen3_enable() is never called in atomic context. It calls mdelay() to busily wait, which is not necessary. mdelay() can be replaced with msleep(). This is found by a static analysis tool named DCNS written by myself. Signed-off-by: Jia-Ju Bai <baijiaju1990 at gmail.com> --- drivers/gpu/drm/radeon/cik.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c index 7c73bc7e2f85..c1b4d4fbcf3a 100644 --- a/drivers/gpu/drm/radeon/cik.c +++ b/drivers/gpu/drm/radeon/cik.c @@ -9598,7 +9598,7 @@ static void cik_pcie_gen3_enable(struct radeon_device *rdev) tmp |= LC_REDO_EQ; WREG32_PCIE_PORT(PCIE_LC_CNTL4, tmp); - mdelay(100); + msleep(100); /* linkctl */ pci_read_config_word(root, bridge_pos + PCI_EXP_LNKCTL, &tmp16); -- 2.17.0
