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MIPS: Allow modules to set board_be_handler

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After making the brcmstb_gisb driver modular with 707a4cdf86 ("bus:
brcmstb_gisb: Allow building as module") Guenter reported that mips
allmodconfig failed to link because board_be_handler was referenced.

Thomas indicated that if we were to continue making the brcmstb_gisb
driver modular for MIPS we would need to introduce a function that
allows setting the board_be_handler and export that function towards
modules.

This is what is being done here: board_be_handler is made static and is
now settable with a mips_set_be_handler() function which is exported.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Suggested-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Fixes: 707a4cdf86 ("bus: brcmstb_gisb: Allow building as module")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Florian Fainelli 2021-11-05 10:30:47 -07:00 committed by Thomas Bogendoerfer
parent 36de23a4c5
commit 1f761b3e67
12 changed files with 20 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/mips/dec/setup.c
View File

@ -117,21 +117,21 @@ static void __init dec_be_init(void)
{
switch (mips_machtype) {
case MACH_DS23100: /* DS2100/DS3100 Pmin/Pmax */
board_be_handler = dec_kn01_be_handler;
mips_set_be_handler(dec_kn01_be_handler);
busirq_handler = dec_kn01_be_interrupt;
busirq_flags |= IRQF_SHARED;
dec_kn01_be_init();
break;
case MACH_DS5000_1XX: /* DS5000/1xx 3min */
case MACH_DS5000_XX: /* DS5000/xx Maxine */
board_be_handler = dec_kn02xa_be_handler;
mips_set_be_handler(dec_kn02xa_be_handler);
busirq_handler = dec_kn02xa_be_interrupt;
dec_kn02xa_be_init();
break;
case MACH_DS5000_200: /* DS5000/200 3max */
case MACH_DS5000_2X0: /* DS5000/240 3max+ */
case MACH_DS5900: /* DS5900 bigmax */
board_be_handler = dec_ecc_be_handler;
mips_set_be_handler(dec_ecc_be_handler);
busirq_handler = dec_ecc_be_interrupt;
dec_ecc_be_init();
break;

2
arch/mips/include/asm/traps.h
View File

@ -15,7 +15,7 @@
#define MIPS_BE_FATAL 2 /* treat as an unrecoverable error */
extern void (*board_be_init)(void);
extern int (*board_be_handler)(struct pt_regs *regs, int is_fixup);
void mips_set_be_handler(int (*handler)(struct pt_regs *reg, int is_fixup));
extern void (*board_nmi_handler_setup)(void);
extern void (*board_ejtag_handler_setup)(void);

8
arch/mips/kernel/traps.c
View File

@ -103,13 +103,19 @@ extern asmlinkage void handle_reserved(void);
extern void tlb_do_page_fault_0(void);
void (*board_be_init)(void);
int (*board_be_handler)(struct pt_regs *regs, int is_fixup);
static int (*board_be_handler)(struct pt_regs *regs, int is_fixup);
void (*board_nmi_handler_setup)(void);
void (*board_ejtag_handler_setup)(void);
void (*board_bind_eic_interrupt)(int irq, int regset);
void (*board_ebase_setup)(void);
void(*board_cache_error_setup)(void);
void mips_set_be_handler(int (*handler)(struct pt_regs *regs, int is_fixup))
{
board_be_handler = handler;
}
EXPORT_SYMBOL_GPL(mips_set_be_handler);
static void show_raw_backtrace(unsigned long reg29, const char *loglvl,
bool user)
{

2
arch/mips/sgi-ip22/ip22-berr.c
View File

@ -112,5 +112,5 @@ static int ip22_be_handler(struct pt_regs *regs, int is_fixup)
void __init ip22_be_init(void)
{
board_be_handler = ip22_be_handler;
mips_set_be_handler(ip22_be_handler);
}

2
arch/mips/sgi-ip22/ip28-berr.c
View File

@ -468,7 +468,7 @@ static int ip28_be_handler(struct pt_regs *regs, int is_fixup)
void __init ip22_be_init(void)
{
board_be_handler = ip28_be_handler;
mips_set_be_handler(ip28_be_handler);
}
int ip28_show_be_info(struct seq_file *m)

2
arch/mips/sgi-ip27/ip27-berr.c
View File

@ -85,7 +85,7 @@ void __init ip27_be_init(void)
int cpu = LOCAL_HUB_L(PI_CPU_NUM);
int cpuoff = cpu << 8;
board_be_handler = ip27_be_handler;
mips_set_be_handler(ip27_be_handler);
LOCAL_HUB_S(PI_ERR_INT_PEND,
cpu ? PI_ERR_CLEAR_ALL_B : PI_ERR_CLEAR_ALL_A);

2
arch/mips/sgi-ip32/ip32-berr.c
View File

@ -34,5 +34,5 @@ static int ip32_be_handler(struct pt_regs *regs, int is_fixup)
void __init ip32_be_init(void)
{
board_be_handler = ip32_be_handler;
mips_set_be_handler(ip32_be_handler);
}

2
arch/mips/sibyte/swarm/setup.c
View File

@ -123,7 +123,7 @@ void __init plat_mem_setup(void)
#error invalid SiByte board configuration
#endif
board_be_handler = swarm_be_handler;
mips_set_be_handler(swarm_be_handler);
if (xicor_probe())
swarm_rtc_type = RTC_XICOR;

2
arch/mips/txx9/generic/setup_tx4927.c
View File

@ -80,7 +80,7 @@ static int tx4927_be_handler(struct pt_regs *regs, int is_fixup)
}
static void __init tx4927_be_init(void)
{
board_be_handler = tx4927_be_handler;
mips_set_be_handler(tx4927_be_handler);
}
static struct resource tx4927_sdram_resource[4];

2
arch/mips/txx9/generic/setup_tx4938.c
View File

@ -82,7 +82,7 @@ static int tx4938_be_handler(struct pt_regs *regs, int is_fixup)
}
static void __init tx4938_be_init(void)
{
board_be_handler = tx4938_be_handler;
mips_set_be_handler(tx4938_be_handler);
}
static struct resource tx4938_sdram_resource[4];

2
arch/mips/txx9/generic/setup_tx4939.c
View File

@ -86,7 +86,7 @@ static int tx4939_be_handler(struct pt_regs *regs, int is_fixup)
}
static void __init tx4939_be_init(void)
{
board_be_handler = tx4939_be_handler;
mips_set_be_handler(tx4939_be_handler);
}
static struct resource tx4939_sdram_resource[4];

2
drivers/bus/brcmstb_gisb.c
View File

@ -485,7 +485,7 @@ static int __init brcmstb_gisb_arb_probe(struct platform_device *pdev)
list_add_tail(&gdev->next, &brcmstb_gisb_arb_device_list);
#ifdef CONFIG_MIPS
board_be_handler = brcmstb_bus_error_handler;
mips_set_be_handler(brcmstb_bus_error_handler);
#endif
if (list_is_singular(&brcmstb_gisb_arb_device_list)) {