There are many instances where a region of memory is allocated using allocator functions and immediately the region of memory is zeroed using memset function.
We already have zeroing memory allocator function for that purpose and replacing the currently used allocator functions with zeroing allocators will make code cleaner, easier to read, and also reduce the code size. For eg: Before: himanshu@himanshu-Vostro-3559:~/linux-next$ size drivers/scsi/bnx2fc/bnx2fc_hwi.o text data bss dec hex filename 40783 5940 64 46787 b6c3 drivers/scsi/bnx2fc/bnx2fc_hwi.o After: himanshu@himanshu-Vostro-3559:~/linux-next$ size drivers/scsi/bnx2fc/bnx2fc_hwi.o text data bss dec hex filename 40619 5940 64 46623 b61f drivers/scsi/bnx2fc/bnx2fc_hwi.o Also, all these patches have been tested using 0-day test service with zero build failures. Done using Coccinelle. Generated-by: scripts/coccinelle/api/alloc/kzalloc-simple.cocci Link: https://lkml.org/lkml/2017/12/26/205 Himanshu Jha (9): scsi: qla4xxx: Use zeroing allocator rather than allocator/memset scsi: qla2xxx: Use zeroing allocator rather than allocator/memset scsi: qedi: Use zeroing allocator instead of allocator/memset scsi: mvsas: Use zeroing allocator rather than allocator/memset scsi: fnic: Use zeroing allocator rather than allocator/memset scsi: dpt_i2o: Use zeroing allocator rather than allocator/memset scsi: bnx2fc: Use zeroing allocator rather than allocator/memset scsi: bfa: Use zeroing allocator rather than allocator/memset scsi: bnx2i: Use zeroing allocator rather than allocator/memset drivers/scsi/bfa/bfad.c | 3 +- drivers/scsi/bfa/bfad_debugfs.c | 8 ++--- drivers/scsi/bnx2fc/bnx2fc_hwi.c | 60 ++++++++++++++++---------------------- drivers/scsi/bnx2fc/bnx2fc_tgt.c | 51 ++++++++++++++------------------ drivers/scsi/bnx2i/bnx2i_hwi.c | 14 ++++----- drivers/scsi/dpt_i2o.c | 19 +++++------- drivers/scsi/fnic/fnic_debugfs.c | 10 ++----- drivers/scsi/fnic/fnic_trace.c | 9 ++---- drivers/scsi/mvsas/mv_init.c | 27 +++++++---------- drivers/scsi/qedi/qedi_main.c | 42 ++++++++++---------------- drivers/scsi/qla2xxx/qla_attr.c | 5 ++-- drivers/scsi/qla2xxx/qla_bsg.c | 9 ++---- drivers/scsi/qla2xxx/tcm_qla2xxx.c | 5 +--- drivers/scsi/qla4xxx/ql4_init.c | 5 ++-- drivers/scsi/qla4xxx/ql4_mbx.c | 21 ++++++------- drivers/scsi/qla4xxx/ql4_nx.c | 5 ++-- drivers/scsi/qla4xxx/ql4_os.c | 12 ++++---- 17 files changed, 118 insertions(+), 187 deletions(-) -- 2.7.4
