diff options
Diffstat (limited to 'arch/arm64/kernel')
| -rw-r--r-- | arch/arm64/kernel/idreg-override.c | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/arch/arm64/kernel/idreg-override.c b/arch/arm64/kernel/idreg-override.c index ca1b8d2dbe99..1eca93446345 100644 --- a/arch/arm64/kernel/idreg-override.c +++ b/arch/arm64/kernel/idreg-override.c @@ -185,8 +185,8 @@ static const struct { char alias[FTR_ALIAS_NAME_LEN]; char feature[FTR_ALIAS_OPTION_LEN]; } aliases[] __initconst = { - { "kvm-arm.mode=nvhe", "id_aa64mmfr1.vh=0" }, - { "kvm-arm.mode=protected", "id_aa64mmfr1.vh=0" }, + { "kvm_arm.mode=nvhe", "id_aa64mmfr1.vh=0" }, + { "kvm_arm.mode=protected", "id_aa64mmfr1.vh=0" }, { "arm64.nosve", "id_aa64pfr0.sve=0" }, { "arm64.nosme", "id_aa64pfr1.sme=0" }, { "arm64.nobti", "id_aa64pfr1.bt=0" }, @@ -215,7 +215,7 @@ static int __init find_field(const char *cmdline, len = snprintf(opt, ARRAY_SIZE(opt), "%s.%s=", reg->name, reg->fields[f].name); - if (!parameqn(cmdline, opt, len)) + if (memcmp(cmdline, opt, len)) return -1; return kstrtou64(cmdline + len, 0, v); @@ -272,23 +272,29 @@ static __init void __parse_cmdline(const char *cmdline, bool parse_aliases) cmdline = skip_spaces(cmdline); - for (len = 0; cmdline[len] && !isspace(cmdline[len]); len++); - if (!len) + /* terminate on "--" appearing on the command line by itself */ + if (cmdline[0] == '-' && cmdline[1] == '-' && isspace(cmdline[2])) return; - len = min(len, ARRAY_SIZE(buf) - 1); - memcpy(buf, cmdline, len); - buf[len] = '\0'; - - if (strcmp(buf, "--") == 0) + for (len = 0; cmdline[len] && !isspace(cmdline[len]); len++) { + if (len >= sizeof(buf) - 1) + break; + if (cmdline[len] == '-') + buf[len] = '_'; + else + buf[len] = cmdline[len]; + } + if (!len) return; + buf[len] = 0; + cmdline += len; match_options(buf); for (i = 0; parse_aliases && i < ARRAY_SIZE(aliases); i++) - if (parameq(buf, aliases[i].alias)) + if (!memcmp(buf, aliases[i].alias, len + 1)) __parse_cmdline(aliases[i].feature, false); } while (1); } |