staging: exfat: remove two unused functions

Fix sparse warnings:

drivers/staging/exfat/exfat_core.c:2045:4: warning: symbol 'calc_checksum_1byte' was not declared. Should it be static?
drivers/staging/exfat/exfat_core.c:2080:5: warning: symbol 'calc_checksum_4byte' was not declared. Should it be static?

The two functions has no caller in tree, so remove it.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20191114140348.46088-1-yuehaibing@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/exfat/exfat_core.c b/drivers/staging/exfat/exfat_core.c
index 1638ed2..d2d3447 100644 (file)
--- a/drivers/staging/exfat/exfat_core.c
+++ b/drivers/staging/exfat/exfat_core.c
@@ -2042,17 +2042,6 @@ static s32 exfat_calc_num_entries(struct uni_name_t *p_uniname)
        return (len - 1) / 15 + 3;
 }
 
-u8 calc_checksum_1byte(void *data, s32 len, u8 chksum)
-{
-       int i;
-       u8 *c = (u8 *)data;
-
-       for (i = 0; i < len; i++, c++)
-               chksum = (((chksum & 1) << 7) | ((chksum & 0xFE) >> 1)) + *c;
-
-       return chksum;
-}
-
 u16 calc_checksum_2byte(void *data, s32 len, u16 chksum, s32 type)
 {
        int i;
@@ -2077,30 +2066,6 @@ u16 calc_checksum_2byte(void *data, s32 len, u16 chksum, s32 type)
        return chksum;
 }
 
-u32 calc_checksum_4byte(void *data, s32 len, u32 chksum, s32 type)
-{
-       int i;
-       u8 *c = (u8 *)data;
-
-       switch (type) {
-       case CS_PBR_SECTOR:
-               for (i = 0; i < len; i++, c++) {
-                       if ((i == 106) || (i == 107) || (i == 112))
-                               continue;
-                       chksum = (((chksum & 1) << 31) |
-                                 ((chksum & 0xFFFFFFFE) >> 1)) + (u32)*c;
-               }
-               break;
-       default
-                       :
-               for (i = 0; i < len; i++, c++)
-                       chksum = (((chksum & 1) << 31) |
-                                 ((chksum & 0xFFFFFFFE) >> 1)) + (u32)*c;
-       }
-
-       return chksum;
-}
-
 /*
  *  Name Resolution Functions
  */