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authorLars-Peter Clausen <lars@metafoo.de>2011-11-28 09:44:16 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2011-12-09 08:54:34 -0800
commitbdbee02fb09ff4278de3c4656689261ee9647007 (patch)
treed678a41fc2b40bae944e9fba5a9a72b3ca09c30b
parent2a323db413fbe17c15cd60376d012f2ee2659f8d (diff)
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>
-rw-r--r--drivers/firmware/sigma.c2
-rw-r--r--include/linux/sigma.h8
2 files changed, 5 insertions, 5 deletions
diff --git a/drivers/firmware/sigma.c b/drivers/firmware/sigma.c
index 36265de0a9e8..1eedb6f7fdab 100644
--- a/drivers/firmware/sigma.c
+++ b/drivers/firmware/sigma.c
@@ -133,7 +133,7 @@ int process_sigma_firmware(struct i2c_client *client, const char *name)
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 9a138c2946bb..d0de882c0d96 100644
--- a/include/linux/sigma.h
+++ b/include/linux/sigma.h
@@ -24,7 +24,7 @@ struct sigma_firmware {
struct sigma_firmware_header {
unsigned char magic[7];
u8 version;
- u32 crc;
+ __le32 crc;
};
enum {
@@ -40,14 +40,14 @@ enum {
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);