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| author |   James Smart <jsmart2021@gmail.com> | 2019-08-27 14:27:46 -0700 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2019-08-29 18:07:59 -0400 |
| commit | 7f9989bace91a7a36051d64cbf46f7760c52bbf0 (patch) | |
| tree | 534bf607455dc1753e412c177acadf1384b44313 /drivers | |
| parent | scsi: ufs: remove set but not used variable 'val' (diff) | |
| download | linux-dev-7f9989bace91a7a36051d64cbf46f7760c52bbf0.tar.xz linux-dev-7f9989bace91a7a36051d64cbf46f7760c52bbf0.zip | |
scsi: lpfc: Resolve checker warning for lpfc_new_io_buf()
Per Dan Carpenter:
The patch d79c9e9d4b3d: "scsi: lpfc: Support dynamic unbounded SGL lists on
G7 hardware." from Aug 14, 2019, leads to the following static checker
warning:
drivers/scsi/lpfc/lpfc_init.c:4107 lpfc_new_io_buf()
error: not allocating enough data 784 vs 768
There was no need to compare sizes nor to allocate size based on a define.
Change allocation to use actual structure length
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
CC: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_init.c | 11 | ||||
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_sli4.h | 3 |
2 files changed, 1 insertions, 13 deletions
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 0bc04af1d2fb..de92eb86579a 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -4093,18 +4093,9 @@ lpfc_new_io_buf(struct lpfc_hba *phba, int num_to_alloc) LIST_HEAD(post_nblist); LIST_HEAD(nvme_nblist); - /* Sanity check to ensure our sizing is right for both SCSI and NVME */ - if (sizeof(struct lpfc_io_buf) > LPFC_COMMON_IO_BUF_SZ) { - lpfc_printf_log(phba, KERN_ERR, LOG_FCP, - "6426 Common buffer size %zd exceeds %d\n", - sizeof(struct lpfc_io_buf), - LPFC_COMMON_IO_BUF_SZ); - return 0; - } - phba->sli4_hba.io_xri_cnt = 0; for (bcnt = 0; bcnt < num_to_alloc; bcnt++) { - lpfc_ncmd = kzalloc(LPFC_COMMON_IO_BUF_SZ, GFP_KERNEL); + lpfc_ncmd = kzalloc(sizeof(*lpfc_ncmd), GFP_KERNEL); if (!lpfc_ncmd) break; /* diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h index 11a72bbef8f7..4bdd58de4692 100644 --- a/drivers/scsi/lpfc/lpfc_sli4.h +++ b/drivers/scsi/lpfc/lpfc_sli4.h @@ -44,9 +44,6 @@ #define LPFC_HBA_HDWQ_MAX 128 #define LPFC_HBA_HDWQ_DEF 0 -/* Common buffer size to accomidate SCSI and NVME IO buffers */ -#define LPFC_COMMON_IO_BUF_SZ 768 - /* * Provide the default FCF Record attributes used by the driver * when nonFIP mode is configured and there is no other default |