powerpc/powernv: Cleanup on EEH comments

This applies cleanup on eeh-powernv.c, no functional changes:

   * Remove unnecessary comments and empty line.
   * Correct inaccurate comments.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/platforms/powernv/eeh-powernv.c b/arch/powerpc/platforms/powernv/eeh-powernv.c
index 3bb6acb..2032936 100644 (file)
--- a/arch/powerpc/platforms/powernv/eeh-powernv.c
+++ b/arch/powerpc/platforms/powernv/eeh-powernv.c
@@ -43,17 +43,11 @@
 static bool pnv_eeh_nb_init = false;
 static int eeh_event_irq = -EINVAL;
 
-/**
- * pnv_eeh_init - EEH platform dependent initialization
- *
- * EEH platform dependent initialization on powernv
- */
 static int pnv_eeh_init(void)
 {
        struct pci_controller *hose;
        struct pnv_phb *phb;
 
-       /* We require OPALv3 */
        if (!firmware_has_feature(FW_FEATURE_OPALv3)) {
                pr_warn("%s: OPALv3 is required !\n",
                        __func__);
@@ -77,9 +71,9 @@ static int pnv_eeh_init(void)
                /*
                 * PE#0 should be regarded as valid by EEH core
                 * if it's not the reserved one. Currently, we
-                * have the reserved PE#0 and PE#127 for PHB3
+                * have the reserved PE#255 and PE#127 for PHB3
                 * and P7IOC separately. So we should regard
-                * PE#0 as valid for P7IOC.
+                * PE#0 as valid for PHB3 and P7IOC.
                 */
                if (phb->ioda.reserved_pe != 0)
                        eeh_add_flag(EEH_VALID_PE_ZERO);
@@ -284,7 +278,6 @@ static int pnv_eeh_post_init(void)
 #endif /* CONFIG_DEBUG_FS */
        }
 
-
        return ret;
 }
 
@@ -490,7 +483,6 @@ static int pnv_eeh_set_option(struct eeh_pe *pe, int option)
        int opt, ret = 0;
        s64 rc;
 
-       /* Sanity check on option */
        switch (option) {
        case EEH_OPT_DISABLE:
                return -EPERM;
@@ -1065,7 +1057,6 @@ static int pnv_eeh_err_inject(struct eeh_pe *pe, int type, int func,
        struct pnv_phb *phb = hose->private_data;
        s64 rc;
 
-       /* Sanity check on error type */
        if (type != OPAL_ERR_INJECT_TYPE_IOA_BUS_ERR &&
            type != OPAL_ERR_INJECT_TYPE_IOA_BUS_ERR64) {
                pr_warn("%s: Invalid error type %d\n",