[v2] powerpc/powernv: fix pci-cxl.c build when CONFIG_MODULES=n

[Michael Ellerman]

On Tue, 2016-19-07 at 02:33:35 UTC, Ian Munsie wrote:
> From: Ian Munsie <imunsie at au1.ibm.com>
> 
> pnv_cxl_enable_phb_kernel_api() grabs a reference to the cxl module to
> prevent it from being unloaded after the PHB has been switched to CX4 mode.
> This breaks the build when CONFIG_MODULES=n as module_mutex doesn't exist.
> 
> However, if we don't have modules, we don't need to protect against the
> case of the cxl module being unloaded. As such, split the relevant
> code out into a function surrounded with #if IS_MODULE(CXL) so we don't try
> to compile it if cxl isn't being compiled as a module.
> 
> Fixes: 5918dbc9b4ec ("powerpc/powernv: Add support for the cxl kernel api
> on the real phb")
> Reported-by: Michael Ellerman <mpe at ellerman.id.au>
> Signed-off-by: Ian Munsie <imunsie at au1.ibm.com>
> Signed-off-by: Andrew Donnellan <andrew.donnellan at au1.ibm.com>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/c2ca9f6b4cc4c45eb598b24b8b

cheers