diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2020-04-20 18:34:20 +0300 |
|---|---|---|
| committer | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2020-04-20 18:34:20 +0300 |
| commit | f7ea285b6266822bd63af2a3695f03e3357fd74f (patch) | |
| tree | ad5d6f3bab25094c81a072fb56fcac2f50ed91ed /kernel/sched/isolation.c | |
| parent | 97e130f63757ede9abc4a9ee42b5fcad466a8e97 (diff) | |
| parent | c7582ff7ed388b803d083166514a4c8acd4ef57d (diff) | |
Merge branch 'ib-pdx86-properties'
Merge branch 'ib-pdx86-properties' of
git://git.infradead.org/linux-platform-drivers-x86.git
to avoid conflicts in PDx86.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'kernel/sched/isolation.c')
| -rw-r--r-- | kernel/sched/isolation.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/kernel/sched/isolation.c b/kernel/sched/isolation.c index 008d6ac2342b..808244f3ddd9 100644 --- a/kernel/sched/isolation.c +++ b/kernel/sched/isolation.c @@ -149,6 +149,9 @@ __setup("nohz_full=", housekeeping_nohz_full_setup); static int __init housekeeping_isolcpus_setup(char *str) { unsigned int flags = 0; + bool illegal = false; + char *par; + int len; while (isalpha(*str)) { if (!strncmp(str, "nohz,", 5)) { @@ -169,8 +172,22 @@ static int __init housekeeping_isolcpus_setup(char *str) continue; } - pr_warn("isolcpus: Error, unknown flag\n"); - return 0; + /* + * Skip unknown sub-parameter and validate that it is not + * containing an invalid character. + */ + for (par = str, len = 0; *str && *str != ','; str++, len++) { + if (!isalpha(*str) && *str != '_') + illegal = true; + } + + if (illegal) { + pr_warn("isolcpus: Invalid flag %.*s\n", len, par); + return 0; + } + + pr_info("isolcpus: Skipped unknown flag %.*s\n", len, par); + str++; } /* Default behaviour for isolcpus without flags */ |