From: Bernd Schubert <bernd@bsbernd.com>
Date: Sat, 28 Dec 2024 13:41:15 +0000 (+0100)
Subject: fuse_lowlevel.c: define FUSE_MAXOP as CUSE_INIT
X-Git-Tag: fuse-3.17.1-rc0~37^2~3
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=3d90402f9084edb90ddb00d6ccd8c2183e6df140;p=qemu-gpiodev%2Flibfuse.git

fuse_lowlevel.c: define FUSE_MAXOP as CUSE_INIT

We don't want FUSE_MAXOP calculated at compilation time,
as the ABI limit is CUSE_INIT - better use that value
directly.

Signed-off-by: Bernd Schubert <bernd@bsbernd.com>
---

diff --git a/lib/fuse_lowlevel.c b/lib/fuse_lowlevel.c
index e48efa5..a0d8647 100644
--- a/lib/fuse_lowlevel.c
+++ b/lib/fuse_lowlevel.c
@@ -2712,7 +2712,12 @@ static struct {
 	[CUSE_INIT]	   = { cuse_lowlevel_init, "CUSE_INIT"   },
 };
 
-#define FUSE_MAXOP (sizeof(fuse_ll_ops) / sizeof(fuse_ll_ops[0]))
+/*
+ * For ABI compatibility we cannot allow higher values than CUSE_INIT.
+ * Without ABI compatibility we could use the size of the array.
+ * #define FUSE_MAXOP (sizeof(fuse_ll_ops) / sizeof(fuse_ll_ops[0]))
+ */
+#define FUSE_MAXOP (CUSE_INIT + 1)
 
 static const char *opname(enum fuse_opcode opcode)
 {