From d3b41b6bb49ecbf74b6bda63e00bf17fdb4d3c47 Mon Sep 17 00:00:00 2001 From: Finn Thain Date: Tue, 15 Jan 2019 15:18:56 +1100 Subject: m68k: Dispatch nvram_ops calls to Atari or Mac functions A multi-platform kernel binary has to decide at run-time how to dispatch the arch_nvram_ops calls. Add a platform-independent arch_nvram_ops struct for this, to replace the atari-specific one. Enable CONFIG_HAVE_ARCH_NVRAM_OPS for Macs. Acked-by: Geert Uytterhoeven Tested-by: Stan Johnson Signed-off-by: Finn Thain Signed-off-by: Greg Kroah-Hartman --- arch/m68k/atari/nvram.c | 21 +++++---------------- 1 file changed, 5 insertions(+), 16 deletions(-) (limited to 'arch/m68k/atari') diff --git a/arch/m68k/atari/nvram.c b/arch/m68k/atari/nvram.c index c347fd206ddf..7000d2443aa3 100644 --- a/arch/m68k/atari/nvram.c +++ b/arch/m68k/atari/nvram.c @@ -74,7 +74,7 @@ static void __nvram_set_checksum(void) __nvram_write_byte(sum, ATARI_CKS_LOC + 1); } -static long atari_nvram_set_checksum(void) +long atari_nvram_set_checksum(void) { spin_lock_irq(&rtc_lock); __nvram_set_checksum(); @@ -82,7 +82,7 @@ static long atari_nvram_set_checksum(void) return 0; } -static long atari_nvram_initialize(void) +long atari_nvram_initialize(void) { loff_t i; @@ -94,7 +94,7 @@ static long atari_nvram_initialize(void) return 0; } -static ssize_t atari_nvram_read(char *buf, size_t count, loff_t *ppos) +ssize_t atari_nvram_read(char *buf, size_t count, loff_t *ppos) { char *p = buf; loff_t i; @@ -112,7 +112,7 @@ static ssize_t atari_nvram_read(char *buf, size_t count, loff_t *ppos) return p - buf; } -static ssize_t atari_nvram_write(char *buf, size_t count, loff_t *ppos) +ssize_t atari_nvram_write(char *buf, size_t count, loff_t *ppos) { char *p = buf; loff_t i; @@ -131,22 +131,11 @@ static ssize_t atari_nvram_write(char *buf, size_t count, loff_t *ppos) return p - buf; } -static ssize_t atari_nvram_get_size(void) +ssize_t atari_nvram_get_size(void) { - if (!MACH_IS_ATARI) - return -ENODEV; return NVRAM_BYTES; } -const struct nvram_ops arch_nvram_ops = { - .read = atari_nvram_read, - .write = atari_nvram_write, - .get_size = atari_nvram_get_size, - .set_checksum = atari_nvram_set_checksum, - .initialize = atari_nvram_initialize, -}; -EXPORT_SYMBOL(arch_nvram_ops); - #ifdef CONFIG_PROC_FS static struct { unsigned char val; -- cgit v1.2.3