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| author | Marc Carino <marc.ceeeee@gmail.com> | 2013-09-01 17:59:01 +0200 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2013-09-03 16:37:41 +0200 |
| commit | 86a565e61bcb9574bae3b622799682fef2d855bb (patch) | |
| tree | 7e6b44cba78f54779388ebb1c6a1b78138cb5807 /drivers/ata/libata-core.c | |
| parent | libata: acpi: Remove ata_dev_acpi_handle stub in libata.h (diff) | |
| download | linux-86a565e61bcb9574bae3b622799682fef2d855bb.tar.xz linux-86a565e61bcb9574bae3b622799682fef2d855bb.zip | |
libata: bugfix: Remove __le32 in ata_tf_to_fis()
The endianness attribute on the 'aux' local variable is wrong, and can
lead to wrong endianness on big-endian machines,
Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/ata/libata-core.c')
| -rw-r--r-- | drivers/ata/libata-core.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index a044be99841a..83b1a9fb2d44 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -546,8 +546,6 @@ int atapi_cmd_type(u8 opcode) */ void ata_tf_to_fis(const struct ata_taskfile *tf, u8 pmp, int is_cmd, u8 *fis) { - const __le32 aux = cpu_to_le32(tf->auxiliary); - fis[0] = 0x27; /* Register - Host to Device FIS */ fis[1] = pmp & 0xf; /* Port multiplier number*/ if (is_cmd) @@ -571,10 +569,10 @@ void ata_tf_to_fis(const struct ata_taskfile *tf, u8 pmp, int is_cmd, u8 *fis) fis[14] = 0; fis[15] = tf->ctl; - fis[16] = aux & 0xff; - fis[17] = (aux >> 8) & 0xff; - fis[18] = (aux >> 16) & 0xff; - fis[19] = (aux >> 24) & 0xff; + fis[16] = tf->auxiliary & 0xff; + fis[17] = (tf->auxiliary >> 8) & 0xff; + fis[18] = (tf->auxiliary >> 16) & 0xff; + fis[19] = (tf->auxiliary >> 24) & 0xff; } /** |