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authorLinus Torvalds <torvalds@linux-foundation.org>2020-01-27 23:04:48 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-01-27 23:04:48 +0300
commit34dabd81160f7bfb18b67c1161b3c4d7ca6cab83 (patch)
treec1e3e270a3be1e8b400baee92e6786ba33dfcc81 /drivers
parent85c009e8e5d2794e2efb1019e3648f3d8126f1b5 (diff)
parent786c87cd312ad2ec774bc4606834b06844dada6c (diff)
downloadlinux-34dabd81160f7bfb18b67c1161b3c4d7ca6cab83.tar.xz
Merge tag 'pnp-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull PNP updates from Rafael Wysocki: "Get rid of unused variable and function (yu kuai)" * tag 'pnp-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PNP: isapnp: remove defined but not used function 'isapnp_checksum' PNP: isapnp: remove set but not used variable 'checksum'
Diffstat (limited to 'drivers')
-rw-r--r--drivers/pnp/isapnp/core.c25
1 files changed, 1 insertions, 24 deletions
diff --git a/drivers/pnp/isapnp/core.c b/drivers/pnp/isapnp/core.c
index 179b737280e1..c43d8ad02529 100644
--- a/drivers/pnp/isapnp/core.c
+++ b/drivers/pnp/isapnp/core.c
@@ -747,34 +747,12 @@ __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)
{
int csn;
- unsigned char header[9], checksum;
+ unsigned char header[9];
struct pnp_card *card;
u32 eisa_id;
char id[8];
@@ -784,7 +762,6 @@ static int __init isapnp_build_device_list(void)
for (csn = 1; csn <= isapnp_csn_count; csn++) {
isapnp_wake(csn);
isapnp_peek(header, 9);
- checksum = isapnp_checksum(header);
eisa_id = header[0] | header[1] << 8 |
header[2] << 16 | header[3] << 24;
pnp_eisa_id_to_string(eisa_id, id);