Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 34 insertions, 0 deletions

diff --git a/arch/x86/boot/compressed/cmdline.c b/arch/x86/boot/compressed/cmdline.c
new file mode 100644
index 000000000..af6cda0b7
--- /dev/null
+++ b/arch/x86/boot/compressed/cmdline.c
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "misc.h"
+
+#if CONFIG_EARLY_PRINTK || CONFIG_RANDOMIZE_BASE || CONFIG_X86_5LEVEL
+
+static unsigned long fs;
+static inline void set_fs(unsigned long seg)
+{
+	fs = seg << 4;  /* shift it back */
+}
+typedef unsigned long addr_t;
+static inline char rdfs8(addr_t addr)
+{
+	return *((char *)(fs + addr));
+}
+#include "../cmdline.c"
+unsigned long get_cmd_line_ptr(void)
+{
+	unsigned long cmd_line_ptr = boot_params->hdr.cmd_line_ptr;
+
+	cmd_line_ptr |= (u64)boot_params->ext_cmd_line_ptr << 32;
+
+	return cmd_line_ptr;
+}
+int cmdline_find_option(const char *option, char *buffer, int bufsize)
+{
+	return __cmdline_find_option(get_cmd_line_ptr(), option, buffer, bufsize);
+}
+int cmdline_find_option_bool(const char *option)
+{
+	return __cmdline_find_option_bool(get_cmd_line_ptr(), option);
+}
+
+#endif