File-copy from v4.4.100
This is the result of 'cp' from a linux-stable tree with the 'v4.4.100'
tag checked out (commit 26d6298789e695c9f627ce49a7bbd2286405798a) on
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Please refer to that tree for all history prior to this point.
Change-Id: I8a9ee2aea93cd29c52c847d0ce33091a73ae6afe
diff --git a/drivers/fmc/fru-parse.c b/drivers/fmc/fru-parse.c
new file mode 100644
index 0000000..cb46263
--- /dev/null
+++ b/drivers/fmc/fru-parse.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2012 CERN (www.cern.ch)
+ * Author: Alessandro Rubini <rubini@gnudd.com>
+ *
+ * Released according to the GNU GPL, version 2 or any later version.
+ *
+ * This work is part of the White Rabbit project, a research effort led
+ * by CERN, the European Institute for Nuclear Research.
+ */
+#include <linux/ipmi-fru.h>
+
+/* Some internal helpers */
+static struct fru_type_length *
+__fru_get_board_tl(struct fru_common_header *header, int nr)
+{
+ struct fru_board_info_area *bia;
+ struct fru_type_length *tl;
+
+ bia = fru_get_board_area(header);
+ tl = bia->tl;
+ while (nr > 0 && !fru_is_eof(tl)) {
+ tl = fru_next_tl(tl);
+ nr--;
+ }
+ if (fru_is_eof(tl))
+ return NULL;
+ return tl;
+}
+
+static char *__fru_alloc_get_tl(struct fru_common_header *header, int nr)
+{
+ struct fru_type_length *tl;
+ char *res;
+ int len;
+
+ tl = __fru_get_board_tl(header, nr);
+ if (!tl)
+ return NULL;
+ len = fru_strlen(tl);
+ res = fru_alloc(fru_strlen(tl) + 1);
+ if (!res)
+ return NULL;
+ return fru_strcpy(res, tl);
+}
+
+/* Public checksum verifiers */
+int fru_header_cksum_ok(struct fru_common_header *header)
+{
+ uint8_t *ptr = (void *)header;
+ int i, sum;
+
+ for (i = sum = 0; i < sizeof(*header); i++)
+ sum += ptr[i];
+ return (sum & 0xff) == 0;
+}
+int fru_bia_cksum_ok(struct fru_board_info_area *bia)
+{
+ uint8_t *ptr = (void *)bia;
+ int i, sum;
+
+ for (i = sum = 0; i < 8 * bia->area_len; i++)
+ sum += ptr[i];
+ return (sum & 0xff) == 0;
+}
+
+/* Get various stuff, trivial */
+char *fru_get_board_manufacturer(struct fru_common_header *header)
+{
+ return __fru_alloc_get_tl(header, 0);
+}
+char *fru_get_product_name(struct fru_common_header *header)
+{
+ return __fru_alloc_get_tl(header, 1);
+}
+char *fru_get_serial_number(struct fru_common_header *header)
+{
+ return __fru_alloc_get_tl(header, 2);
+}
+char *fru_get_part_number(struct fru_common_header *header)
+{
+ return __fru_alloc_get_tl(header, 3);
+}