From 99f4f5d62338cab9dcf45735344541574daedd20 Mon Sep 17 00:00:00 2001 From: Masami Hiramatsu Date: Wed, 2 Jun 2021 17:19:34 +0900 Subject: bootconfig: Share the checksum function with tools Move the checksum calculation function into the header for sharing it with tools/bootconfig. Link: https://lkml.kernel.org/r/162262197470.264090.16325743685807878807.stgit@devnote2 Signed-off-by: Masami Hiramatsu Signed-off-by: Steven Rostedt (VMware) --- tools/bootconfig/main.c | 15 ++------------- 1 file changed, 2 insertions(+), 13 deletions(-) (limited to 'tools') diff --git a/tools/bootconfig/main.c b/tools/bootconfig/main.c index 62a3b5064b17..f45fa992e01d 100644 --- a/tools/bootconfig/main.c +++ b/tools/bootconfig/main.c @@ -126,17 +126,6 @@ static void xbc_show_list(void) } } -/* Simple real checksum */ -static int checksum(unsigned char *buf, int len) -{ - int i, sum = 0; - - for (i = 0; i < len; i++) - sum += buf[i]; - - return sum; -} - #define PAGE_SIZE 4096 static int load_xbc_fd(int fd, char **buf, int size) @@ -232,7 +221,7 @@ static int load_xbc_from_initrd(int fd, char **buf) return ret; /* Wrong Checksum */ - rcsum = checksum((unsigned char *)*buf, size); + rcsum = xbc_calc_checksum(*buf, size); if (csum != rcsum) { pr_err("checksum error: %d != %d\n", csum, rcsum); return -EINVAL; @@ -381,7 +370,7 @@ static int apply_xbc(const char *path, const char *xbc_path) return ret; } size = strlen(buf) + 1; - csum = checksum((unsigned char *)buf, size); + csum = xbc_calc_checksum(buf, size); /* Backup the bootconfig data */ data = calloc(size + BOOTCONFIG_ALIGN + -- cgit v1.2.3