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authorSam Bobroff <sbobroff@linux.ibm.com>2018-05-25 13:11:35 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2018-06-03 20:43:39 +1000
commit309ed3a7157a50edeeddfe49bd527a7347f76237 (patch)
tree9f63c5bc31951af3196fa588537da7950b8a3338 /arch/powerpc/include/asm
parent30424e386a30d1160a0fdf47beafe8b116d0a8f7 (diff)
downloadop-kernel-dev-309ed3a7157a50edeeddfe49bd527a7347f76237.zip
op-kernel-dev-309ed3a7157a50edeeddfe49bd527a7347f76237.tar.gz
powerpc/eeh: Introduce eeh_for_each_pe()
Add a for_each-style macro for iterating through PEs without the boilerplate required by a traversal function. eeh_pe_next() is now exported, as it is now used directly in place. Signed-off-by: Sam Bobroff <sbobroff@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm')
-rw-r--r--arch/powerpc/include/asm/eeh.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h
index f02e040..677102b 100644
--- a/arch/powerpc/include/asm/eeh.h
+++ b/arch/powerpc/include/asm/eeh.h
@@ -106,6 +106,9 @@ struct eeh_pe {
#define eeh_pe_for_each_dev(pe, edev, tmp) \
list_for_each_entry_safe(edev, tmp, &pe->edevs, list)
+#define eeh_for_each_pe(root, pe) \
+ for (pe = root; pe; pe = eeh_pe_next(pe, root))
+
static inline bool eeh_pe_passed(struct eeh_pe *pe)
{
return pe ? !!atomic_read(&pe->pass_dev_cnt) : false;
@@ -267,6 +270,7 @@ typedef void *(*eeh_pe_traverse_func)(struct eeh_pe *pe, void *flag);
void eeh_set_pe_aux_size(int size);
int eeh_phb_pe_create(struct pci_controller *phb);
struct eeh_pe *eeh_phb_pe_get(struct pci_controller *phb);
+struct eeh_pe *eeh_pe_next(struct eeh_pe *pe, struct eeh_pe *root);
struct eeh_pe *eeh_pe_get(struct pci_controller *phb,
int pe_no, int config_addr);
int eeh_add_to_parent_pe(struct eeh_dev *edev);
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