ipq40xx: remove support for kernel 4.19

The target uses 5.4 as default kernel since 03/2020.

Kernel 4.19 support is not really maintained anymore, it does not
seem to be needed, and removing it will make upcoming driver
updates easier. Thus, remove it.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

1 files changed, 0 insertions, 53 deletions

diff --git a/target/linux/ipq40xx/patches-4.19/049-crypto-qce-handle-AES-XTS-cases-that-qce-fails.patch b/target/linux/ipq40xx/patches-4.19/049-crypto-qce-handle-AES-XTS-cases-that-qce-fails.patch
deleted file mode 100644
index 00dc3791ab..0000000000
--- a/target/linux/ipq40xx/patches-4.19/049-crypto-qce-handle-AES-XTS-cases-that-qce-fails.patch
+++ /dev/null
@@ -1,53 +0,0 @@
-From bbf2b1cf22dc98f3df33b6666df046dfb9564d91 Mon Sep 17 00:00:00 2001
-From: Eneas U de Queiroz <cotequeiroz@gmail.com>
-Date: Wed, 5 Feb 2020 13:42:25 -0300
-Subject: [PATCH] crypto: qce - handle AES-XTS cases that qce fails
-
-QCE hangs when presented with an AES-XTS request whose length is larger
-than QCE_SECTOR_SIZE (512-bytes), and is not a multiple of it.  Let the
-fallback cipher handle them.
-
-Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com>
-
---- a/drivers/crypto/qce/common.c
-+++ b/drivers/crypto/qce/common.c
-@@ -23,8 +23,6 @@
- #include "regs-v5.h"
- #include "sha.h"
- 
--#define QCE_SECTOR_SIZE		512
--
- static inline u32 qce_read(struct qce_device *qce, u32 offset)
- {
- 	return readl(qce->base + offset);
---- a/drivers/crypto/qce/common.h
-+++ b/drivers/crypto/qce/common.h
-@@ -20,6 +20,9 @@
- #include <crypto/hash.h>
- #include <crypto/internal/skcipher.h>
- 
-+/* xts du size */
-+#define QCE_SECTOR_SIZE			512
-+
- /* key size in bytes */
- #define QCE_SHA_HMAC_KEY_SIZE		64
- #define QCE_MAX_CIPHER_KEY_SIZE		AES_KEYSIZE_256
---- a/drivers/crypto/qce/skcipher.c
-+++ b/drivers/crypto/qce/skcipher.c
-@@ -213,9 +213,14 @@ static int qce_skcipher_crypt(struct skc
- 	rctx->flags |= encrypt ? QCE_ENCRYPT : QCE_DECRYPT;
- 	keylen = IS_XTS(rctx->flags) ? ctx->enc_keylen >> 1 : ctx->enc_keylen;
- 
-+	/* qce is hanging when AES-XTS request len > QCE_SECTOR_SIZE and
-+	 * is not a multiple of it; pass such requests to the fallback
-+	 */
- 	if (IS_AES(rctx->flags) &&
--	    ((keylen != AES_KEYSIZE_128 && keylen != AES_KEYSIZE_256) ||
--	     req->cryptlen <= aes_sw_max_len)) {
-+	    (((keylen != AES_KEYSIZE_128 && keylen != AES_KEYSIZE_256) ||
-+	      req->cryptlen <= aes_sw_max_len) ||
-+	     (IS_XTS(rctx->flags) && req->cryptlen > QCE_SECTOR_SIZE &&
-+	      req->cryptlen % QCE_SECTOR_SIZE))) {
- 		SKCIPHER_REQUEST_ON_STACK(subreq, ctx->fallback);
- 
- 		skcipher_request_set_tfm(subreq, ctx->fallback);