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authoryu kuai <yukuai3@huawei.com>2020-01-20 09:23:31 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2020-01-23 00:26:13 +0100
commit786c87cd312ad2ec774bc4606834b06844dada6c (patch)
treed13b7685b1e0b27cedfc3ef64cf4346cb008e87e
parent04c589f35bc57d2f2495fc065ad2ac0ee271ce93 (diff)
downloadblackbird-op-linux-786c87cd312ad2ec774bc4606834b06844dada6c.tar.gz
blackbird-op-linux-786c87cd312ad2ec774bc4606834b06844dada6c.zip
PNP: isapnp: remove defined but not used function 'isapnp_checksum'
Fix gcc '-Wunused-function' warnning: drivers/pnp/isapnp/core.c:752:29: warning: 'isapnp_checksum' defined but not used [-Wunused-function] 752 | static unsigned char __init isapnp_checksum(unsigned char *data) Commit 04c589f35bc5 ("PNP: isapnp: remove set but not used variable 'checksum'") removes the last caller of the function. It is never used and so can be removed. Fixes: 04c589f35bc5 ("PNP: isapnp: remove set but not used variable 'checksum'") Signed-off-by: yu kuai <yukuai3@huawei.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-rw-r--r--drivers/pnp/isapnp/core.c22
1 files changed, 0 insertions, 22 deletions
diff --git a/drivers/pnp/isapnp/core.c b/drivers/pnp/isapnp/core.c
index e39d49bceae0..c43d8ad02529 100644
--- a/drivers/pnp/isapnp/core.c
+++ b/drivers/pnp/isapnp/core.c
@@ -747,28 +747,6 @@ __skip:
}
/*
- * Compute ISA PnP checksum for first eight bytes.
- */
-static unsigned char __init isapnp_checksum(unsigned char *data)
-{
- int i, j;
- unsigned char checksum = 0x6a, bit, b;
-
- for (i = 0; i < 8; i++) {
- b = data[i];
- for (j = 0; j < 8; j++) {
- bit = 0;
- if (b & (1 << j))
- bit = 1;
- checksum =
- ((((checksum ^ (checksum >> 1)) & 0x01) ^ bit) << 7)
- | (checksum >> 1);
- }
- }
- return checksum;
-}
-
-/*
* Build device list for all present ISA PnP devices.
*/
static int __init isapnp_build_device_list(void)
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