diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-01-27 23:04:48 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-01-27 23:04:48 +0300 |
| commit | 34dabd81160f7bfb18b67c1161b3c4d7ca6cab83 (patch) | |
| tree | c1e3e270a3be1e8b400baee92e6786ba33dfcc81 /drivers | |
| parent | 85c009e8e5d2794e2efb1019e3648f3d8126f1b5 (diff) | |
| parent | 786c87cd312ad2ec774bc4606834b06844dada6c (diff) | |
| download | linux-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.c | 25 |
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); |