[rtems commit] libfdt: fdt_create_with_flags(): Fix comparison warning

[Sebastian Huber]

Module:    rtems
Branch:    master
Commit:    113cc99965baef647f8bb102bfc78c4529416f2b
Changeset: http://git.rtems.org/rtems/commit/?id=113cc99965baef647f8bb102bfc78c4529416f2b

Author:    Andre Przywara <andre.przywara at arm.com>
Date:      Thu Oct  1 17:46:27 2020 +0100

libfdt: fdt_create_with_flags(): Fix comparison warning

With -Wsign-compare, compilers warn about a mismatching signedness
in a comparison in fdt_create_with_flags().

By making hdrsize a signed integer (we are sure it's a very small
number), we avoid all the casts and have matching types.

Signed-off-by: Andre Przywara <andre.przywara at arm.com>
Message-Id: <20201001164630.4980-4-andre.przywara at arm.com>
Signed-off-by: David Gibson <david at gibson.dropbear.id.au>

---

 cpukit/dtc/libfdt/fdt_sw.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/cpukit/dtc/libfdt/fdt_sw.c b/cpukit/dtc/libfdt/fdt_sw.c
index 354f466..68b543c 100644
--- a/cpukit/dtc/libfdt/fdt_sw.c
+++ b/cpukit/dtc/libfdt/fdt_sw.c
@@ -108,8 +108,8 @@ static void *fdt_grab_space_(void *fdt, size_t len)
 
 int fdt_create_with_flags(void *buf, int bufsize, uint32_t flags)
 {
-	const size_t hdrsize = FDT_ALIGN(sizeof(struct fdt_header),
-					 sizeof(struct fdt_reserve_entry));
+	const int hdrsize = FDT_ALIGN(sizeof(struct fdt_header),
+				      sizeof(struct fdt_reserve_entry));
 	void *fdt = buf;
 
 	if (bufsize < hdrsize)