From 1278cf66cf4b1c3d30e311200b50c45457c92baa Mon Sep 17 00:00:00 2001 From: Finn Thain Date: Tue, 15 Jan 2019 15:18:56 +1100 Subject: nvram: Replace nvram_* function exports with static functions Replace nvram_* functions with static functions in nvram.h. These will become wrappers for struct nvram_ops method calls. This patch effectively disables existing NVRAM functionality so as to allow the rest of the series to be bisected without build failures. That functionality is gradually re-implemented in subsequent patches. Replace the sole validate-checksum-and-read-byte sequence with a call to nvram_read() which will gain the same semantics in subsequent patches. Remove unused exports. Acked-by: Geert Uytterhoeven Signed-off-by: Finn Thain Signed-off-by: Greg Kroah-Hartman --- arch/m68k/atari/nvram.c | 39 +++------------------------------------ 1 file changed, 3 insertions(+), 36 deletions(-) (limited to 'arch/m68k/atari') diff --git a/arch/m68k/atari/nvram.c b/arch/m68k/atari/nvram.c index a8c457e40b0b..1d767847ffa6 100644 --- a/arch/m68k/atari/nvram.c +++ b/arch/m68k/atari/nvram.c @@ -34,38 +34,17 @@ * periodic 11 min sync from kernel/time/ntp.c vs. this driver.) */ -unsigned char __nvram_read_byte(int i) +static unsigned char __nvram_read_byte(int i) { return CMOS_READ(NVRAM_FIRST_BYTE + i); } -unsigned char nvram_read_byte(int i) -{ - unsigned long flags; - unsigned char c; - - spin_lock_irqsave(&rtc_lock, flags); - c = __nvram_read_byte(i); - spin_unlock_irqrestore(&rtc_lock, flags); - return c; -} -EXPORT_SYMBOL(nvram_read_byte); - /* This races nicely with trying to read with checksum checking */ -void __nvram_write_byte(unsigned char c, int i) +static void __nvram_write_byte(unsigned char c, int i) { CMOS_WRITE(c, NVRAM_FIRST_BYTE + i); } -void nvram_write_byte(unsigned char c, int i) -{ - unsigned long flags; - - spin_lock_irqsave(&rtc_lock, flags); - __nvram_write_byte(c, i); - spin_unlock_irqrestore(&rtc_lock, flags); -} - /* On Ataris, the checksum is over all bytes except the checksum bytes * themselves; these are at the very end. */ @@ -73,7 +52,7 @@ void nvram_write_byte(unsigned char c, int i) #define ATARI_CKS_RANGE_END 47 #define ATARI_CKS_LOC 48 -int __nvram_check_checksum(void) +static int __nvram_check_checksum(void) { int i; unsigned char sum = 0; @@ -84,18 +63,6 @@ int __nvram_check_checksum(void) (__nvram_read_byte(ATARI_CKS_LOC + 1) == (sum & 0xff)); } -int nvram_check_checksum(void) -{ - unsigned long flags; - int rv; - - spin_lock_irqsave(&rtc_lock, flags); - rv = __nvram_check_checksum(); - spin_unlock_irqrestore(&rtc_lock, flags); - return rv; -} -EXPORT_SYMBOL(nvram_check_checksum); - static void __nvram_set_checksum(void) { int i; -- cgit v1.2.3