bus: mhi: Fix parsing of mhi_flags

With the current parsing of mhi_flags, the following statement always
return false:

eob = !!(flags & MHI_EOB);

This is due to the fact that 'enum mhi_flags' starts with index 0 and we
are using direct AND operation to extract each bit. Fix this by using
BIT() macros for defining the flags so that the reset of the code need not
be touched.

Fixes: 189ff97cca53 ("bus: mhi: core: Add support for data transfer")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20200430190555.32741-2-manivannan.sadhasivam@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/include/linux/mhi.h b/include/linux/mhi.h
index ad19960019653fceb12a220f291483246586f3f2..5642806360f3e8775cbd8b1f31f59310d4065740 100644 (file)
--- a/include/linux/mhi.h
+++ b/include/linux/mhi.h
@@ -53,9 +53,9 @@ enum mhi_callback {
  * @MHI_CHAIN: Linked transfer
  */
 enum mhi_flags {
-       MHI_EOB,
-       MHI_EOT,
-       MHI_CHAIN,
+       MHI_EOB = BIT(0),
+       MHI_EOT = BIT(1),
+       MHI_CHAIN = BIT(2),
 };
 
 /**