linux-kernel - [PATCH] NTB: EPF: reduce several globals to statics

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Date:   Thu, 30 Jun 2022 16:48:59 -0400
From:   Tom Rix <trix@...hat.com>
To:     kishon@...com, lpieralisi@...nel.org, kw@...ux.com,
        bhelgaas@...gle.com, Frank.Li@....com, jdmason@...zu.us
Cc:     linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
        Tom Rix <trix@...hat.com>
Subject: [PATCH] NTB: EPF: reduce several globals to statics

sparse reports
drivers/pci/endpoint/functions/pci-epf-vntb.c:956:10: warning: symbol 'pci_space' was not declared. Should it be static?
drivers/pci/endpoint/functions/pci-epf-vntb.c:975:5: warning: symbol 'pci_read' was not declared. Should it be static?
drivers/pci/endpoint/functions/pci-epf-vntb.c:984:5: warning: symbol 'pci_write' was not declared. Should it be static?
drivers/pci/endpoint/functions/pci-epf-vntb.c:989:16: warning: symbol 'vpci_ops' was not declared. Should it be static?

These functions and variables are only used in pci-epf-vntb.c, so their storage
class specifiers should be static.

Fixes: ff32fac00d97 ("NTB: EPF: support NTB transfer between PCI RC and EP connection")
Signed-off-by: Tom Rix <trix@...hat.com>
---
 drivers/pci/endpoint/functions/pci-epf-vntb.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/pci/endpoint/functions/pci-epf-vntb.c b/drivers/pci/endpoint/functions/pci-epf-vntb.c
index ebf7e243eefa..6f0775b1fec3 100644
--- a/drivers/pci/endpoint/functions/pci-epf-vntb.c
+++ b/drivers/pci/endpoint/functions/pci-epf-vntb.c
@@ -953,7 +953,7 @@ static struct config_group *epf_ntb_add_cfs(struct pci_epf *epf,
 
 #define VPCI_BUS_NUM 0x10
 
-uint32_t pci_space[] = {
+static uint32_t pci_space[] = {
 	(VNTB_VID | (VNTB_PID << 16)),	//DeviceID, Vendor ID
 	0,		// status, Command
 	0xffffffff,	// Class code, subclass, prog if, revision id
@@ -972,7 +972,7 @@ uint32_t pci_space[] = {
 	0,		//Max Lat, Min Gnt, interrupt pin, interrupt line
 };
 
-int pci_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *val)
+static int pci_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *val)
 {
 	if (devfn == 0) {
 		memcpy(val, ((uint8_t *)pci_space) + where, size);
@@ -981,12 +981,12 @@ int pci_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *
 	return -1;
 }
 
-int pci_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val)
+static int pci_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val)
 {
 	return 0;
 }
 
-struct pci_ops vpci_ops = {
+static struct pci_ops vpci_ops = {
 	.read = pci_read,
 	.write = pci_write,
 };
-- 
2.27.0