linux-kernel - [PATCH V0 1/1] bootconfig: Increase max size of bootconfig from 32 KB to 256 KB for DCC support

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Date:   Mon, 9 Jan 2023 20:01:05 +0530
From:   Souradeep Chowdhury <quic_schowdhu@...cinc.com>
To:     Masami Hiramatsu <mhiramat@...nel.org>,
        <linux-kernel@...r.kernel.org>,
        Bjorn Andersson <andersson@...nel.org>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-arm-msm@...r.kernel.org>,
        Sai Prakash Ranjan <quic_saipraka@...cinc.com>,
        Sibi Sankar <quic_sibis@...cinc.com>,
        Rajendra Nayak <quic_rjendra@...cinc.com>,
        Souradeep Chowdhury <quic_schowdhu@...cinc.com>
Subject: [PATCH V0 1/1] bootconfig: Increase max size of bootconfig from 32 KB to 256 KB for DCC support

Increasing the memory size of bootconfig to be able to handle a max number of
8192 nodes to be fitted in memory size of 256KB.

Signed-off-by: Souradeep Chowdhury <quic_schowdhu@...cinc.com>
---
 include/linux/bootconfig.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/linux/bootconfig.h b/include/linux/bootconfig.h
index 1611f9d..64d233b 100644
--- a/include/linux/bootconfig.h
+++ b/include/linux/bootconfig.h
@@ -55,11 +55,11 @@ struct xbc_node {
 } __attribute__ ((__packed__));
 
 #define XBC_KEY		0
-#define XBC_VALUE	(1 << 15)
-/* Maximum size of boot config is 32KB - 1 */
+#define XBC_VALUE	(1 << 18)
+/* Maximum size of boot config is 256KB - 1 */
 #define XBC_DATA_MAX	(XBC_VALUE - 1)
 
-#define XBC_NODE_MAX	1024
+#define XBC_NODE_MAX	8192
 #define XBC_KEYLEN_MAX	256
 #define XBC_DEPTH_MAX	16
 
-- 
2.7.4