summaryrefslogtreecommitdiff
path: root/kernel/platform-feature.c
diff options
context:
space:
mode:
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-06-20 08:59:23 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-06-20 08:59:23 +0200
commite8f4118f4297f93e82ebcf4dd1eb6e48fead592e (patch)
tree7cc982375122242b71036c8b8154d972da1b84f7 /kernel/platform-feature.c
parentde9257ae1d3b0d8856955045d194e3ff4f278394 (diff)
parenta111daf0c53ae91e71fd2bfe7497862d14132e3e (diff)
Merge 5.19-rc3 into staging-next
This resolves the merge issue with: drivers/staging/r8188eu/os_dep/ioctl_linux.c Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/platform-feature.c')
-rw-r--r--kernel/platform-feature.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/kernel/platform-feature.c b/kernel/platform-feature.c
new file mode 100644
index 000000000000..cb6a6c3e4fed
--- /dev/null
+++ b/kernel/platform-feature.c
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bitops.h>
+#include <linux/cache.h>
+#include <linux/export.h>
+#include <linux/platform-feature.h>
+
+#define PLATFORM_FEAT_ARRAY_SZ BITS_TO_LONGS(PLATFORM_FEAT_N)
+static unsigned long __read_mostly platform_features[PLATFORM_FEAT_ARRAY_SZ];
+
+void platform_set(unsigned int feature)
+{
+ set_bit(feature, platform_features);
+}
+EXPORT_SYMBOL_GPL(platform_set);
+
+void platform_clear(unsigned int feature)
+{
+ clear_bit(feature, platform_features);
+}
+EXPORT_SYMBOL_GPL(platform_clear);
+
+bool platform_has(unsigned int feature)
+{
+ return test_bit(feature, platform_features);
+}
+EXPORT_SYMBOL_GPL(platform_has);