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authorFinn Thain <fthain@telegraphics.com.au>2019-01-15 15:18:56 +1100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-01-22 10:21:43 +0100
commit1278cf66cf4b1c3d30e311200b50c45457c92baa (patch)
tree78e061ec221158e7792f821c90ce3b9572a4bd71 /arch/m68k
parentcb8d8006d43f22924e000c730d18862587a824ff (diff)
downloadlinux-1278cf66cf4b1c3d30e311200b50c45457c92baa.tar.bz2
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 <geert@linux-m68k.org> Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/m68k')
-rw-r--r--arch/m68k/atari/nvram.c39
1 files changed, 3 insertions, 36 deletions
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;