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powernv/pci: Use pnv_phb as the private data for debugfs entries 

Use the pnv_phb structure as the private data pointer for the debugfs
files.  This lets us delete some code and an open-coded use of
hose->private_data.

Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190912052945.12589-1-oohall@gmail.com
This commit is contained in:
Oliver O'Halloran 2019-09-12 15:29:43 +10:00 committed by Michael Ellerman
parent a4af49f34f
commit 22ba728907
1 changed files with 2 additions and 9 deletions
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11
arch/powerpc/platforms/powernv/pci-ioda.c
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@ -3090,19 +3090,12 @@ static void pnv_ioda_setup_pe_seg(struct pnv_ioda_pe *pe)
#ifdef CONFIG_DEBUG_FS
static int pnv_pci_diag_data_set(void *data, u64 val)
{
struct pci_controller *hose;
struct pnv_phb *phb;
struct pnv_phb *phb = data;
s64 ret;
if (val != 1ULL)
return -EINVAL;
hose = (struct pci_controller *)data;
if (!hose || !hose->private_data)
return -ENODEV;
phb = hose->private_data;
/* Retrieve the diag data from firmware */
ret = opal_pci_get_phb_diag_data2(phb->opal_id, phb->diag_data,
phb->diag_data_size);
@ -3141,7 +3134,7 @@ static void pnv_pci_ioda_create_dbgfs(void)
}
debugfs_create_file_unsafe("dump_diag_regs", 0200, phb->dbgfs,
hose, &pnv_pci_diag_data_fops);
phb, &pnv_pci_diag_data_fops);
}
#endif /* CONFIG_DEBUG_FS */
}