X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=lib%2F842%2F842_compress.c;h=4051339bdfbda6e6869d7f7c669672ba65f3d3f1;hb=ea0b3984c1cc8b28de27a3bec285102b4e366a4c;hp=7ce68948e68c84d41c796c70a726895e65c68d78;hpb=8688d9540cc6e17df4cba71615e27f04e0378fe6;p=karo-tx-linux.git

diff --git a/lib/842/842_compress.c b/lib/842/842_compress.c
index 7ce68948e68c..4051339bdfbd 100644
--- a/lib/842/842_compress.c
+++ b/lib/842/842_compress.c
@@ -490,6 +490,7 @@ int sw842_compress(const u8 *in, unsigned int ilen,
 	int ret;
 	u64 last, next, pad, total;
 	u8 repeat_count = 0;
+	u32 crc;
 
 	BUILD_BUG_ON(sizeof(*p) > SW842_MEM_COMPRESS);
 
@@ -580,6 +581,18 @@ skip_comp:
 	if (ret)
 		return ret;
 
+	/*
+	 * crc(0:31) is appended to target data starting with the next
+	 * bit after End of stream template.
+	 * nx842 calculates CRC for data in big-endian format. So doing
+	 * same here so that sw842 decompression can be used for both
+	 * compressed data.
+	 */
+	crc = crc32_be(0, in, ilen);
+	ret = add_bits(p, crc, CRC_BITS);
+	if (ret)
+		return ret;
+
 	if (p->bit) {
 		p->out++;
 		p->olen--;