Although these drivers do not have any Sparse messages indication problems with endian operations, there are two places where the information being processed is little endian, but was being processed in cpu order. The first of these is in downloading firmware. Rather than do a double conversion for BE hosts, I converted the firmware download routines to send bytes rather than 32-bit quantities. The number of I/O operations in increased, but firmware download is usually done only once. A second problem is that the USB driver requires that the descriptors be checksummed before transmission to the device so that critical info such as DMA addresses are not garbled in transmission. The original code was calculating the checksum in cpu order. There is also a third change that causes the USB driver rtl8192cu to use the same set of macros to read and write the descriptors. This change was no necessary; however, it simplifies the code, and did identify an endian problem in the macros. Using identical macros for PCI- and USB-based hardware increases the likelihood that the PCI devices will work with BE hardware. At the moment, we do not have such hardware for testing. Signed-off-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx> Cc: Ping-Ke Shih <pkshih@xxxxxxxxxxx> V2 - No functional changes. Merge conflict resolved. Larry Finger (3): rtlwifi: Download firmware as bytes rather than as dwords rtlwifi: rtl8192cu: Calculate descriptor checksum correctly for BE rtlwifi: rtl8192cu: Convert driver to use common macros drivers/net/wireless/realtek/rtlwifi/efuse.c | 45 ++++ drivers/net/wireless/realtek/rtlwifi/efuse.h | 4 + .../net/wireless/realtek/rtlwifi/rtl8188ee/fw.c | 67 +---- .../wireless/realtek/rtlwifi/rtl8192c/fw_common.c | 70 +----- .../net/wireless/realtek/rtlwifi/rtl8192cu/trx.c | 4 +- .../net/wireless/realtek/rtlwifi/rtl8192cu/trx.h | 272 ++++++++++----------- .../net/wireless/realtek/rtlwifi/rtl8192de/fw.c | 70 +----- .../net/wireless/realtek/rtlwifi/rtl8192ee/fw.c | 68 +----- .../realtek/rtlwifi/rtl8723com/fw_common.c | 69 +----- .../realtek/rtlwifi/rtl8723com/fw_common.h | 6 - .../net/wireless/realtek/rtlwifi/rtl8821ae/fw.c | 67 +---- drivers/net/wireless/realtek/rtlwifi/wifi.h | 23 +- 12 files changed, 219 insertions(+), 546 deletions(-) -- 2.10.2
