From 5fc8041e56782e4d44682f8c2e4d822817a4dae6 Mon Sep 17 00:00:00 2001 From: Giovanni Cabiddu Date: Mon, 28 Nov 2022 12:21:22 +0000 Subject: [PATCH] crypto: acomp - define max size for destination The acomp API allows to send requests with a NULL destination buffer. In this case, the algorithm implementation needs to allocate the destination scatter list, perform the operation and return the buffer to the user. For decompression, data is likely to expand and be bigger than the allocated buffer. Define the maximum size (128KB) that acomp implementations will allocate for decompression operations as destination buffer when they receive a request with a NULL destination buffer. Suggested-by: Herbert Xu Signed-off-by: Giovanni Cabiddu Signed-off-by: Herbert Xu --- include/crypto/acompress.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/crypto/acompress.h b/include/crypto/acompress.h index cb3d6b1c655d..e4bc96528902 100644 --- a/include/crypto/acompress.h +++ b/include/crypto/acompress.h @@ -11,6 +11,7 @@ #include #define CRYPTO_ACOMP_ALLOC_OUTPUT 0x00000001 +#define CRYPTO_ACOMP_DST_MAX 131072 /** * struct acomp_req - asynchronous (de)compression request