From 1bf50d381e7906fba5ee294ef921080425a6d35d Mon Sep 17 00:00:00 2001 From: Jia-Ju Bai Date: Mon, 23 Jul 2018 22:29:56 +0800 Subject: [PATCH 5009/5725] gpu: drm: amdgpu: Replace mdelay with msleep in cik_pcie_gen3_enable() cik_pcie_gen3_enable() is only called by cik_common_hw_init(), which is never called in atomic context. cik_pcie_gen3_enable() 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 Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/cik.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/cik.c b/drivers/gpu/drm/amd/amdgpu/cik.c index 702e257..78ab939 100644 --- a/drivers/gpu/drm/amd/amdgpu/cik.c +++ b/drivers/gpu/drm/amd/amdgpu/cik.c @@ -1476,7 +1476,7 @@ static void cik_pcie_gen3_enable(struct amdgpu_device *adev) tmp |= PCIE_LC_CNTL4__LC_REDO_EQ_MASK; WREG32_PCIE(ixPCIE_LC_CNTL4, tmp); - mdelay(100); + msleep(100); /* linkctl */ pci_read_config_word(root, bridge_pos + PCI_EXP_LNKCTL, &tmp16); -- 2.7.4