[PATCH 2/7] powerpc/eeh_cache: Add pr_debug() prints for insert/remove
From: Oliver O'Halloran <oohall@gmail.com>
Date: 2019-02-08 03:11:26
Subsystem:
linux for powerpc (32-bit and 64-bit), pci enhanced error handling (eeh) for powerpc, the rest · Maintainers:
Madhavan Srinivasan, Mahesh J Salgaonkar, Linus Torvalds
The EEH address cache is used to map a physical MMIO address back to a PCI device. It's useful to know when it's being manipulated, but currently this requires recompiling with #define DEBUG set. This is pointless since we have dynamic_debug nowdays, so remove the #ifdef guard and add a pr_debug() for the remove case too. Signed-off-by: Oliver O'Halloran <oohall@gmail.com> --- arch/powerpc/kernel/eeh_cache.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/kernel/eeh_cache.c b/arch/powerpc/kernel/eeh_cache.c
index 201943d54a6e..b2c320e0fcef 100644
--- a/arch/powerpc/kernel/eeh_cache.c
+++ b/arch/powerpc/kernel/eeh_cache.c@@ -157,10 +157,8 @@ eeh_addr_cache_insert(struct pci_dev *dev, resource_size_t alo, piar->pcidev = dev; piar->flags = flags; -#ifdef DEBUG pr_debug("PIAR: insert range=[%pap:%pap] dev=%s\n", &alo, &ahi, pci_name(dev)); -#endif rb_link_node(&piar->rb_node, parent, p); rb_insert_color(&piar->rb_node, &pci_io_addr_cache_root.rb_root);
@@ -240,6 +238,8 @@ static inline void __eeh_addr_cache_rmv_dev(struct pci_dev *dev) piar = rb_entry(n, struct pci_io_addr_range, rb_node); if (piar->pcidev == dev) { + pr_debug("PIAR: remove range=[%pap:%pap] dev=%s\n", + &piar->addr_lo, &piar->addr_hi, pci_name(dev)); rb_erase(n, &pci_io_addr_cache_root.rb_root); kfree(piar); goto restart;
--
2.20.1