On Mon, Jul 23, 2018 at 10:29 AM, Jia-Ju Bai baijiaju1990@gmail.com wrote:
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 baijiaju1990@gmail.com
Applied. thanks!
Alex
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 0df22030e713..5b7fab2c2008 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);-- 2.17.0
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