diff options
| author | Jason Gunthorpe <jgg@nvidia.com> | 2025-02-27 20:26:32 -0400 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2025-03-06 15:13:13 -0400 |
| commit | 8eea4e74475804285507c077bec87d40be87ff06 (patch) | |
| tree | 2ea334c62d09bc5a1190aa0030114de92fd657f8 /tools/debugging | |
| parent | fwctl: FWCTL_INFO to return basic information about the device (diff) | |
| download | linux-8eea4e74475804285507c077bec87d40be87ff06.tar.gz linux-8eea4e74475804285507c077bec87d40be87ff06.zip | |
taint: Add TAINT_FWCTL
Requesting a fwctl scope of access that includes mutating device debug
data will cause the kernel to be tainted. Changing the device operation
through things in the debug scope may cause the device to malfunction in
undefined ways. This should be reflected in the TAINT flags to help any
debuggers understand that something has been done.
Link: https://patch.msgid.link/r/4-v5-642aa0c94070+4447f-fwctl_jgg@nvidia.com
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Shannon Nelson <shannon.nelson@amd.com>
Tested-by: Dave Jiang <dave.jiang@intel.com>
Tested-by: Shannon Nelson <shannon.nelson@amd.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'tools/debugging')
| -rwxr-xr-x | tools/debugging/kernel-chktaint | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/debugging/kernel-chktaint b/tools/debugging/kernel-chktaint index 279be06332be..e7da0909d097 100755 --- a/tools/debugging/kernel-chktaint +++ b/tools/debugging/kernel-chktaint @@ -204,6 +204,14 @@ else echo " * an in-kernel test (such as a KUnit test) has been run (#18)" fi +T=`expr $T / 2` +if [ `expr $T % 2` -eq 0 ]; then + addout " " +else + addout "J" + echo " * fwctl's mutating debug interface was used (#19)" +fi + echo "For a more detailed explanation of the various taint flags see" echo " Documentation/admin-guide/tainted-kernels.rst in the Linux kernel sources" echo " or https://kernel.org/doc/html/latest/admin-guide/tainted-kernels.html" |