PCI: Remove MODULE_LICENSE so boolean drivers don't look like modules

Since 8b41fc4454e3 ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations are
used to identify modules. As a consequence, MODULE_LICENSE in non-modules
causes modprobe to misidentify the object file as a module when it is not,
and modprobe might succeed rather than failing with a suitable error
message.

For tristate modules that can be either built-in or loaded at runtime,
modprobe succeeds in both cases:

  # modprobe ext4
  [exit status zero if CONFIG_EXT4_FS=y or =m]

For boolean modules like the Standard Hot Plug Controller driver (shpchp)
that cannot be loaded at runtime, modprobe should always fail like this:

  # modprobe shpchp
  modprobe: FATAL: Module shpchp not found in directory /lib/modules/...
  [exit status non-zero regardless of CONFIG_HOTPLUG_PCI_SHPC]

but prior to this commit, shpchp_core.c contained MODULE_LICENSE, so
"modprobe shpchp" silently succeeded when it should have failed.

Remove MODULE_LICENSE in files that cannot be built as modules.

[bhelgaas: commit log, squash]
Suggested-by: Luis Chamberlain <[email protected]>
Link: https://lore.kernel.org/r/[email protected]/
Signed-off-by: Nick Alcock <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Reviewed-by: Manivannan Sadhasivam <[email protected]>
Cc: Luis Chamberlain <[email protected]>
Cc: Hitomi Hasegawa <[email protected]>
Cc: Rob Herring <[email protected]>
Cc: Lorenzo Pieralisi <[email protected]>

1 files changed, 0 insertions, 1 deletions

diff --git a/drivers/pci/controller/pci-versatile.c b/drivers/pci/controller/pci-versatile.c
index 7991d334e0f1..e9a6758fe2c1 100644
--- a/drivers/pci/controller/pci-versatile.c
+++ b/drivers/pci/controller/pci-versatile.c
@@ -169,4 +169,3 @@ static struct platform_driver versatile_pci_driver = {
 module_platform_driver(versatile_pci_driver);
 
 MODULE_DESCRIPTION("Versatile PCI driver");
-MODULE_LICENSE("GPL v2");