From 0e27aeccfa3d1bab7c6a29fb8e6fcedbad7b09a8 Mon Sep 17 00:00:00 2001 From: Kishon Vijay Abraham I Date: Tue, 2 Feb 2021 01:27:56 +0530 Subject: PCI: endpoint: Make *_free_bar() to return error codes on failure Modify pci_epc_get_next_free_bar() and pci_epc_get_first_free_bar() to return error values if there are no free BARs available. Link: https://lore.kernel.org/r/20210201195809.7342-5-kishon@ti.com Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Lorenzo Pieralisi Signed-off-by: Bjorn Helgaas --- include/linux/pci-epc.h | 8 ++++---- include/linux/pci-epf.h | 1 + 2 files changed, 5 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/pci-epc.h b/include/linux/pci-epc.h index cfe9b427e6b7..88d311bad984 100644 --- a/include/linux/pci-epc.h +++ b/include/linux/pci-epc.h @@ -201,10 +201,10 @@ int pci_epc_start(struct pci_epc *epc); void pci_epc_stop(struct pci_epc *epc); const struct pci_epc_features *pci_epc_get_features(struct pci_epc *epc, u8 func_no); -unsigned int pci_epc_get_first_free_bar(const struct pci_epc_features - *epc_features); -unsigned int pci_epc_get_next_free_bar(const struct pci_epc_features - *epc_features, enum pci_barno bar); +enum pci_barno +pci_epc_get_first_free_bar(const struct pci_epc_features *epc_features); +enum pci_barno pci_epc_get_next_free_bar(const struct pci_epc_features + *epc_features, enum pci_barno bar); struct pci_epc *pci_epc_get(const char *epc_name); void pci_epc_put(struct pci_epc *epc); diff --git a/include/linux/pci-epf.h b/include/linux/pci-epf.h index 6644ff3b0702..fa3aca43eb19 100644 --- a/include/linux/pci-epf.h +++ b/include/linux/pci-epf.h @@ -21,6 +21,7 @@ enum pci_notify_event { }; enum pci_barno { + NO_BAR = -1, BAR_0, BAR_1, BAR_2, -- cgit