rockchip64: fix uboot zstd decompression

patch/u-boot/u-boot-rockchip64/general-fix-zstd-max-window-size.patch

@@ -0,0 +1,54 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Alex Shumsky <alexthreed@gmail.com>
+Date: Mon, 27 Nov 2023 18:24:13 +0000
+Subject: Fix invalid maxWindowSize in zstd_decompress
+
+Signed-off-by: Alex Shumsky <alexthreed@gmail.com>
+---
+ lib/zstd/zstd.c | 9 +++++++--
+ 1 file changed, 7 insertions(+), 2 deletions(-)
+
+diff --git a/lib/zstd/zstd.c b/lib/zstd/zstd.c
+index bf9cd19cfa..fa40473254 100644
+--- a/lib/zstd/zstd.c
++++ b/lib/zstd/zstd.c
+@@ -8,29 +8,34 @@
+ #include <common.h>
+ #include <abuf.h>
+ #include <log.h>
+ #include <malloc.h>
+ #include <linux/zstd.h>
++#include "zstd_internal.h" // MAX
+ 
+ int zstd_decompress(struct abuf *in, struct abuf *out)
+ {
+ 	ZSTD_DStream *dstream;
+ 	ZSTD_inBuffer in_buf;
+ 	ZSTD_outBuffer out_buf;
+ 	void *workspace;
+ 	size_t wsize;
+ 	int ret;
++	size_t maxWindowSize;
+ 
+-	wsize = ZSTD_DStreamWorkspaceBound(abuf_size(in));
++	// compressed data size seems to be totally irrelevant as measure 
++	// of maxWindowSize, but leave it here for safety 
++	maxWindowSize = MAX(abuf_size(in), 128*1024);
++	wsize = ZSTD_DStreamWorkspaceBound(maxWindowSize);
+ 	workspace = malloc(wsize);
+ 	if (!workspace) {
+ 		debug("%s: cannot allocate workspace of size %zu\n", __func__,
+ 			wsize);
+ 		return -ENOMEM;
+ 	}
+ 
+-	dstream = ZSTD_initDStream(abuf_size(in), workspace, wsize);
++	dstream = ZSTD_initDStream(maxWindowSize, workspace, wsize);
+ 	if (!dstream) {
+ 		log_err("%s: ZSTD_initDStream failed\n", __func__);
+ 		ret = -EPERM;
+ 		goto do_free;
+ 	}
+-- 
+Created with Armbian build tools https://github.com/armbian/build
+