From a224bd4b88caa3ac62a4b541a07fae7ea26cab7a Mon Sep 17 00:00:00 2001 From: Alex Elder Date: Sat, 21 May 2022 19:32:23 -0500 Subject: [PATCH] net: ipa: use data space for command opcodes The 64-bit data field in a transaction is not used for commands. And the opcode array is *only* used for commands. They're (currently) the same size; save a little space in the transaction structure by enclosing the two fields in a union. Signed-off-by: Alex Elder Signed-off-by: David S. Miller --- drivers/net/ipa/gsi_trans.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/net/ipa/gsi_trans.h b/drivers/net/ipa/gsi_trans.h index 99ce2cba0dc3..020c3b32de1d 100644 --- a/drivers/net/ipa/gsi_trans.h +++ b/drivers/net/ipa/gsi_trans.h @@ -60,8 +60,10 @@ struct gsi_trans { u8 used; /* # entries used in sgl[] */ u32 len; /* total # bytes across sgl[] */ - void *data; - u8 cmd_opcode[IPA_COMMAND_TRANS_TRE_MAX]; + union { + void *data; + u8 cmd_opcode[IPA_COMMAND_TRANS_TRE_MAX]; + }; struct scatterlist *sgl; enum dma_data_direction direction; -- 2.50.1