firmware: Sigma: Fix endianess issues
commit bda63586bc5929e97288cdb371bb6456504867ed upstream.
Currently the SigmaDSP firmware loader only works correctly on little-endian
systems. Fix this by using the proper endianess conversion functions.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/firmware/sigma.c b/drivers/firmware/sigma.c
index 36265de..1eedb6f 100644
--- a/drivers/firmware/sigma.c
+++ b/drivers/firmware/sigma.c
@@ -133,7 +133,7 @@
crc = crc32(0, fw->data + sizeof(*ssfw_head),
fw->size - sizeof(*ssfw_head));
pr_debug("%s: crc=%x\n", __func__, crc);
- if (crc != ssfw_head->crc)
+ if (crc != le32_to_cpu(ssfw_head->crc))
goto done;
ssfw.pos = sizeof(*ssfw_head);
diff --git a/include/linux/sigma.h b/include/linux/sigma.h
index 9a138c2..d0de882 100644
--- a/include/linux/sigma.h
+++ b/include/linux/sigma.h
@@ -24,7 +24,7 @@
struct sigma_firmware_header {
unsigned char magic[7];
u8 version;
- u32 crc;
+ __le32 crc;
};
enum {
@@ -40,14 +40,14 @@
struct sigma_action {
u8 instr;
u8 len_hi;
- u16 len;
- u16 addr;
+ __le16 len;
+ __be16 addr;
unsigned char payload[];
};
static inline u32 sigma_action_len(struct sigma_action *sa)
{
- return (sa->len_hi << 16) | sa->len;
+ return (sa->len_hi << 16) | le16_to_cpu(sa->len);
}
extern int process_sigma_firmware(struct i2c_client *client, const char *name);