From 786c87cd312ad2ec774bc4606834b06844dada6c Mon Sep 17 00:00:00 2001
From: yu kuai <yukuai3@huawei.com>
Date: Mon, 20 Jan 2020 09:23:31 +0800
Subject: [PATCH] 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>
---
drivers/pnp/isapnp/core.c | 22 ----------------------
1 file changed, 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
@@ -746,28 +746,6 @@ static void __init isapnp_parse_resource_map(struct pnp_card *card)
}
}
-/*
- * 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.
*/
--
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