Re: [PATCH 2/2] powerpc/eeh: Use pcie_reset_state_t type in function arguments

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Le 13/07/2021 à 02:25, Krzysztof Wilczyński a écrit :
The pcie_reset_state_t type has been introduced in the commit
f7bdd12d234d ("pci: New PCI-E reset API") along with the enum
pcie_reset_state, but it has never been used for anything else
other than to define the members of the enumeration set in the
enum pcie_reset_state.

Thus, replace the direct use of enum pcie_reset_state in function
arguments and replace it with pcie_reset_state_t type so that the
argument type matches the type used in enum pcie_reset_state.

Signed-off-by: Krzysztof Wilczyński <kw@xxxxxxxxx>

I don't understand the purpose of this change. Does any tool like sparse of so reports an error here ?

My feeling is that by doing this you loose the added value of using an enumerate.

state is used in a switch/case, that's exactly what we expect from an enum.

By the way, I think you can't change the prototype of a weak function in a patch and not change it at the same time for the overloading function.

So should you still think this change is necessary, I think patch 1 and 2 should be squashed together in one.

Christophe


---
  arch/powerpc/kernel/eeh.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c
index 3bbdcc86d01b..15485abb89ff 100644
--- a/arch/powerpc/kernel/eeh.c
+++ b/arch/powerpc/kernel/eeh.c
@@ -714,7 +714,7 @@ static void eeh_restore_dev_state(struct eeh_dev *edev, void *userdata)
   * Return value:
   * 	0 if success
   */
-int pcibios_set_pcie_reset_state(struct pci_dev *dev, enum pcie_reset_state state)
+int pcibios_set_pcie_reset_state(struct pci_dev *dev, pcie_reset_state_t state)
  {
  	struct eeh_dev *edev = pci_dev_to_eeh_dev(dev);
  	struct eeh_pe *pe = eeh_dev_to_pe(edev);



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