[xen staging] lib: move parse_size_and_unit()

[patchbot@xxxxxxx]

commit 65fdf25768deba4e8bea751773f2ec4f7ff67ea5
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Fri Dec 18 13:21:25 2020 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Fri Dec 18 13:21:25 2020 +0100

    lib: move parse_size_and_unit()
    
    ... into its own CU, to build it into an archive.
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Julien Grall <jgrall@xxxxxxxxxx>
    Acked-by: Wei Liu <wl@xxxxxxx>
    Reviewed-by: Bertrand Marquis <bertrand.marquis@xxxxxxx>
---
 xen/common/lib.c     | 39 ---------------------------------------
 xen/lib/Makefile     |  1 +
 xen/lib/parse-size.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 51 insertions(+), 39 deletions(-)

diff --git a/xen/common/lib.c b/xen/common/lib.c
index a224efa8f6..6cfa332142 100644
--- a/xen/common/lib.c
+++ b/xen/common/lib.c
@@ -423,45 +423,6 @@ uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
 #endif
 }
 
-unsigned long long parse_size_and_unit(const char *s, const char **ps)
-{
-    unsigned long long ret;
-    const char *s1;
-
-    ret = simple_strtoull(s, &s1, 0);
-
-    switch ( *s1 )
-    {
-    case 'T': case 't':
-        ret <<= 10;
-        /* fallthrough */
-    case 'G': case 'g':
-        ret <<= 10;
-        /* fallthrough */
-    case 'M': case 'm':
-        ret <<= 10;
-        /* fallthrough */
-    case 'K': case 'k':
-        ret <<= 10;
-        /* fallthrough */
-    case 'B': case 'b':
-        s1++;
-        break;
-    case '%':
-        if ( ps )
-            break;
-        /* fallthrough */
-    default:
-        ret <<= 10; /* default to kB */
-        break;
-    }
-
-    if ( ps != NULL )
-        *ps = s1;
-
-    return ret;
-}
-
 typedef void (*ctor_func_t)(void);
 extern const ctor_func_t __ctors_start[], __ctors_end[];
 
diff --git a/xen/lib/Makefile b/xen/lib/Makefile
index 764f3624b5..99f857540c 100644
--- a/xen/lib/Makefile
+++ b/xen/lib/Makefile
@@ -2,3 +2,4 @@ obj-$(CONFIG_X86) += x86/
 
 lib-y += ctype.o
 lib-y += list-sort.o
+lib-y += parse-size.o
diff --git a/xen/lib/parse-size.c b/xen/lib/parse-size.c
new file mode 100644
index 0000000000..ec980cadff
--- /dev/null
+++ b/xen/lib/parse-size.c
@@ -0,0 +1,50 @@
+#include <xen/lib.h>
+
+unsigned long long parse_size_and_unit(const char *s, const char **ps)
+{
+    unsigned long long ret;
+    const char *s1;
+
+    ret = simple_strtoull(s, &s1, 0);
+
+    switch ( *s1 )
+    {
+    case 'T': case 't':
+        ret <<= 10;
+        /* fallthrough */
+    case 'G': case 'g':
+        ret <<= 10;
+        /* fallthrough */
+    case 'M': case 'm':
+        ret <<= 10;
+        /* fallthrough */
+    case 'K': case 'k':
+        ret <<= 10;
+        /* fallthrough */
+    case 'B': case 'b':
+        s1++;
+        break;
+    case '%':
+        if ( ps )
+            break;
+        /* fallthrough */
+    default:
+        ret <<= 10; /* default to kB */
+        break;
+    }
+
+    if ( ps != NULL )
+        *ps = s1;
+
+    return ret;
+}
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
--
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