util/nvmutil: simplify writeGbeFile()

Signed-off-by: Leah Rowe <leah@libreboot.org>

2 files changed, 7 insertions, 12 deletions

diff --git a/util/nvmutil/nvmutil.c b/util/nvmutil/nvmutil.c
index d9b79e6..2659313 100644
--- a/util/nvmutil/nvmutil.c
+++ b/util/nvmutil/nvmutil.c
@@ -83,7 +83,7 @@ readGbeFile(const char *path)
 		if (skipread[p])
 			continue;
 		xpread(fd, (uint8_t *) gbe[p], nf, p << 12, path);
-		handle_endianness();
+		handle_endianness(p);
 	}
 }
 
@@ -256,16 +256,11 @@ writeGbeFile(const char *filename)
 {
 	if (gbeFileModified)
 		errno = 0;
-	for (int p = 0; p < 2; p++) {
-		if (gbe[0] > gbe[1])
-			p ^= 1; /* speedhack: write sequentially on-disk */
-		if (!nvmPartModified[p])
-			goto next_part;
-		handle_endianness();
-		xpwrite(fd, (uint8_t *) gbe[p], nf, p << 12, filename);
-next_part:
-		if (gbe[0] > gbe[1])
-			p ^= 1; /* speedhack: write sequentially on-disk */
+	for (int x = gbe[0] > gbe[1] ? 1 : 0, p = 0; p < 2; p++, x ^= 1) {
+		if (!nvmPartModified[x])
+			continue;
+		handle_endianness(x);
+		xpwrite(fd, (uint8_t *) gbe[x], nf, x << 12, filename);
 	}
 	xclose(fd, filename);
 	xpledge("stdio", NULL);
diff --git a/util/nvmutil/nvmutil.h b/util/nvmutil/nvmutil.h
index 18255c3..d69977d 100644
--- a/util/nvmutil/nvmutil.h
+++ b/util/nvmutil/nvmutil.h
@@ -56,7 +56,7 @@ int big_endian;
 	if ((f = open(l, p)) == -1) err(ERR(), "%s", l); \
 	if (fstat(f, &st) == -1) err(ERR(), "%s", l)
 #define xpread(f, b, n, o, l) if (pread(f, b, n, o) == -1) err(ERR(), "%s", l)
-#define handle_endianness() if (big_endian) xorswap_buf(p)
+#define handle_endianness(r) if (big_endian) xorswap_buf(r)
 #define xpwrite(f, b, n, o, l) if (pwrite(f, b, n, o) == -1) err(ERR(), "%s", l)
 #define xclose(f, l) if (close(f) == -1) err(ERR(), "%s", l)