dell-laptop: rkill whitelist Precision models

Given that Precision mobile workstations are top of the line Dell products,
I expect the functionality of rfkill there to be as reliable as on Latitudes
so whitelist Precisions.

https://bugzilla.kernel.org/show_bug.cgi?id=65731

Reported-by: Calum Lind <calumlind@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>

1 files changed, 8 insertions, 5 deletions

diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index 9d7d6a02ae07..d2ceb761a7a2 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -562,16 +562,19 @@ static DECLARE_DELAYED_WORK(dell_rfkill_work, dell_update_rfkill);
 
 static int __init dell_setup_rfkill(void)
 {
-        int status;
-        int ret;
+        int status, ret, whitelisted;
         const char *product;
 
         /*
-         * rfkill causes trouble on various non Latitudes, according to Dell
-         * actually testing the rfkill functionality is only done on Latitudes.
+         * rfkill support causes trouble on various models, mostly Inspirons.
+         * So we whitelist certain series, and don't support rfkill on others.
          */
+        whitelisted = 0;
         product = dmi_get_system_info(DMI_PRODUCT_NAME);
-        if (!force_rfkill && (!product || strncmp(product, "Latitude", 8)))
+        if (product &&  (strncmp(product, "Latitude", 8) == 0 ||
+                         strncmp(product, "Precision", 9) == 0))
+                whitelisted = 1;
+        if (!force_rfkill && !whitelisted)
                 return 0;
 
         get_buffer();