| Message ID | 20230412043258.397455-1-quic_pkondeti@quicinc.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | arm64: kernel: Fix kernel warning when nokaslr is passed to commandline | expand |
On Wed, 12 Apr 2023 10:02:58 +0530, Pavankumar Kondeti wrote: > 'Unknown kernel command line parameters "nokaslr", will be passed to > user space' message is noticed in the dmesg when nokaslr is passed to > the kernel commandline on ARM64 platform. This is because nokaslr param > is handled by early cpufeature detection infrastructure and the parameter > is never consumed by a kernel param handler. Fix this warning by > providing a dummy kernel param handler for nokaslr. > > [...] Applied to arm64 (for-next/misc), thanks! [1/1] arm64: kernel: Fix kernel warning when nokaslr is passed to commandline https://git.kernel.org/arm64/c/a2a83eb40fbd Cheers,
diff --git a/arch/arm64/kernel/idreg-override.c b/arch/arm64/kernel/idreg-override.c index 95133765ed29..75ceb7c07af7 100644 --- a/arch/arm64/kernel/idreg-override.c +++ b/arch/arm64/kernel/idreg-override.c @@ -177,6 +177,13 @@ static const struct { { "nokaslr", "kaslr.disabled=1" }, }; +static int __init parse_nokaslr(char *unused) +{ + /* nokaslr param handling is done by early cpufeature code */ + return 0; +} +early_param("nokaslr", parse_nokaslr); + static int __init find_field(const char *cmdline, const struct ftr_set_desc *reg, int f, u64 *v) {
'Unknown kernel command line parameters "nokaslr", will be passed to user space' message is noticed in the dmesg when nokaslr is passed to the kernel commandline on ARM64 platform. This is because nokaslr param is handled by early cpufeature detection infrastructure and the parameter is never consumed by a kernel param handler. Fix this warning by providing a dummy kernel param handler for nokaslr. Signed-off-by: Pavankumar Kondeti <quic_pkondeti@quicinc.com> --- arch/arm64/kernel/idreg-override.c | 7 +++++++ 1 file changed, 7 insertions(+)