On 14/12/17 02:32, Bryant G. Ly wrote:
> Devices can go offline when EEH is reported. This patch adds
> a change to the kernel object and lets udev know of error.
> When device resumes a change is also set reporting device as
> online. Therefore, EEH events are better propagated to user
> space for devices in powerpc arch.
>
> Signed-off-by: Bryant G. Ly <bryan...@linux.vnet.ibm.com>
> Signed-off-by: Juan J. Alvarez <jjalv...@linux.vnet.ibm.com>
> ---
> arch/powerpc/kernel/eeh_driver.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/arch/powerpc/kernel/eeh_driver.c
> b/arch/powerpc/kernel/eeh_driver.c
> index 3c0fa99c5533..c61bf770282b 100644
> --- a/arch/powerpc/kernel/eeh_driver.c
> +++ b/arch/powerpc/kernel/eeh_driver.c
> @@ -204,6 +204,7 @@ static void *eeh_report_error(void *data, void *userdata)
> struct pci_dev *dev = eeh_dev_to_pci_dev(edev);
> enum pci_ers_result rc, *res = userdata;
> struct pci_driver *driver;
> + char *envp[] = {"EVENT=EEH_ERROR", "ONLINE=0", NULL};
scripts/checkpatch.pl:
WARNING: char * array declaration might be better as static const
#27: FILE: arch/powerpc/kernel/eeh_driver.c:207:
+ char *envp[] = {"EVENT=EEH_ERROR", "ONLINE=0", NULL};
>
> if (!dev || eeh_dev_removed(edev) || eeh_pe_passed(edev->pe))
> return NULL;
> @@ -228,6 +229,7 @@ static void *eeh_report_error(void *data, void *userdata)
>
> edev->in_error = true;
> eeh_pcid_put(dev);
> + kobject_uevent_env(&dev->dev.kobj, KOBJ_CHANGE, envp);
> return NULL;
> }
>
> @@ -358,6 +360,7 @@ static void *eeh_report_resume(void *data, void *userdata)
> struct pci_dev *dev = eeh_dev_to_pci_dev(edev);
> bool was_in_error;
> struct pci_driver *driver;
> + char *envp[] = {"EVENT=EEH_RESUME", "ONLINE=1", NULL};
WARNING: char * array declaration might be better as static const
#43: FILE: arch/powerpc/kernel/eeh_driver.c:363:
+ char *envp[] = {"EVENT=EEH_RESUME", "ONLINE=1", NULL};
>
> if (!dev || eeh_dev_removed(edev) || eeh_pe_passed(edev->pe))
> return NULL;
> @@ -379,8 +382,8 @@ static void *eeh_report_resume(void *data, void *userdata)
> }
>
> driver->err_handler->resume(dev);
> -
Unnecessary change.
> eeh_pcid_put(dev);
> + kobject_uevent_env(&dev->dev.kobj, KOBJ_CHANGE, envp);
> return NULL;
> }
>
>
--
Alexey
