Always compile your patches. CC [M] drivers/staging/ccree/ssi_cipher.o drivers/staging/ccree/ssi_cipher.c: In function ‘ssi_blkcipher_complete’: drivers/staging/ccree/ssi_cipher.c:700:6: warning: unused variable ‘inflight_counter’ [-Wunused-variable] u32 inflight_counter; ^~~~~~~~~~~~~~~~ You need to delete the declaration as well. Don't be in a rush to resend patches. I normally write them then let them sit in my outbox overnight and send them in the morning. The extra delay helps me to calm down a bit and focus better. Even though I've sent thousands of patches, it sometimes still stresses me out. It's like you're disagreeing with the original author and the reviewers are disagreeing with you and everyone's trying to be nice about it but patches are fundamentally points of disagreement and that's stress. regards, dan carpenter