amd64_edac: Build module on x86-32

By popular demand, enable amd64_edac on 32-bit too.

Boris:
 - update Kconfig text.
 - add a warning on load which states that 32-bit configurations are unsupported.

Signed-off-by: Tomasz Pala <gotar@polanet.pl>
Link: http://lkml.kernel.org/r/20141102102212.GA7034@polanet.pl
Signed-off-by: Borislav Petkov <bp@suse.de>

2 files changed, 8 insertions, 3 deletions

diff --git a/drivers/edac/Kconfig b/drivers/edac/Kconfig
index 7072c2892d63..4316c9e955b3 100644
--- a/drivers/edac/Kconfig
+++ b/drivers/edac/Kconfig
@@ -105,11 +105,11 @@ config EDAC_GHES
           In doubt, say 'Y'.
 
 config EDAC_AMD64
-        tristate "AMD64 (Opteron, Athlon64) K8, F10h"
-        depends on EDAC_MM_EDAC && AMD_NB && X86_64 && EDAC_DECODE_MCE
+        tristate "AMD64 (Opteron, Athlon64)"
+        depends on EDAC_MM_EDAC && AMD_NB && EDAC_DECODE_MCE
         help
           Support for error detection and correction of DRAM ECC errors on
-          the AMD64 families of memory controllers (K8 and F10h)
+          the AMD64 families (>= K8) of memory controllers.
 
 config EDAC_AMD64_ERROR_INJECTION
         bool "Sysfs HW Error injection facilities"
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 1a1d7c43a20f..17638d7cf5c2 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -3035,6 +3035,11 @@ static int __init amd64_edac_init(void)
                 goto err_no_instances;
 
         setup_pci_device();
+
+#ifdef CONFIG_X86_32
+        amd64_err("%s on 32-bit is unsupported. USE AT YOUR OWN RISK!\n", EDAC_MOD_STR);
+#endif
+
         return 0;
 
 err_no_instances: