[v2,1/2] common/cpt: fix compilation with GCC 12
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Commit Message
The following warning is observed with GCC 12 compilation:
In function ‘fill_sg_comp_from_iov’,
inlined from ‘cpt_zuc_snow3g_enc_prep’ at
../drivers/common/cpt/cpt_ucode.h:1672:9,
inlined from ‘cpt_fc_enc_hmac_prep’ at
../drivers/common/cpt/cpt_ucode.h:2472:3,
inlined from ‘fill_digest_params’ at
../drivers/common/cpt/cpt_ucode.h:3548:14,
inlined from ‘otx_cpt_enq_single_sym’ at
../drivers/crypto/octeontx/otx_cryptodev_ops.c:541:9,
inlined from ‘otx_cpt_enq_single_sym_sessless’ at
../drivers/crypto/octeontx/otx_cryptodev_ops.c:584:8,
inlined from ‘otx_cpt_enq_single’ at
../drivers/crypto/octeontx/otx_cryptodev_ops.c:611:11,
inlined from ‘otx_cpt_pkt_enqueue’ at
../drivers/crypto/octeontx/otx_cryptodev_ops.c:643:9,
inlined from ‘otx_cpt_enqueue_sym’ at
../drivers/crypto/octeontx/otx_cryptodev_ops.c:668:9:
../drivers/common/cpt/cpt_ucode.h:415:36: warning: array subscript 0 is
outside array bounds of ‘buf_ptr_t[0]’ {aka ‘struct buf_ptr[]’}
[-Warray-bounds]
415 | e_dma_addr = bufs[j].dma_addr;
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
../drivers/common/cpt/cpt_ucode.h:416:48: warning: array subscript 0 is
outside array bounds of ‘buf_ptr_t[0]’ {aka ‘struct buf_ptr[]’}
[-Warray-bounds]
416 | e_len = (size > bufs[j].size) ?
| ~~~~~~~^~~~~
This patch resolves the warning.
Bugzilla ID: 861
Fixes: 9be415daf469 ("common/cpt: add common defines for microcode")
Fixes: b74652f3a91f ("common/cpt: add microcode interface for encryption")
Cc: stable@dpdk.org
Signed-off-by: Ankur Dwivedi <adwivedi@marvell.com>
Reviewed-by: Anoob Joseph <anoobj@marvell.com>
Reviewed-by: Jerin Jacob Kollanukkaran <jerinj@marvell.com>
---
drivers/common/cpt/cpt_mcode_defines.h | 2 +-
drivers/common/cpt/cpt_ucode.h | 21 ++++++++++-----------
2 files changed, 11 insertions(+), 12 deletions(-)
@@ -387,7 +387,7 @@ typedef struct buf_ptr {
/* IOV Pointer */
typedef struct{
int buf_cnt;
- buf_ptr_t bufs[0];
+ buf_ptr_t bufs[];
} iov_ptr_t;
typedef struct fc_params {
@@ -394,27 +394,26 @@ fill_sg_comp_from_iov(sg_comp_t *list,
int32_t j;
uint32_t extra_len = extra_buf ? extra_buf->size : 0;
uint32_t size = *psize;
- buf_ptr_t *bufs;
- bufs = from->bufs;
for (j = 0; (j < from->buf_cnt) && size; j++) {
+ phys_addr_t dma_addr = from->bufs[j].dma_addr;
+ uint32_t buf_sz = from->bufs[j].size;
+ sg_comp_t *to = &list[i >> 2];
phys_addr_t e_dma_addr;
uint32_t e_len;
- sg_comp_t *to = &list[i >> 2];
if (unlikely(from_offset)) {
- if (from_offset >= bufs[j].size) {
- from_offset -= bufs[j].size;
+ if (from_offset >= buf_sz) {
+ from_offset -= buf_sz;
continue;
}
- e_dma_addr = bufs[j].dma_addr + from_offset;
- e_len = (size > (bufs[j].size - from_offset)) ?
- (bufs[j].size - from_offset) : size;
+ e_dma_addr = dma_addr + from_offset;
+ e_len = (size > (buf_sz - from_offset)) ?
+ (buf_sz - from_offset) : size;
from_offset = 0;
} else {
- e_dma_addr = bufs[j].dma_addr;
- e_len = (size > bufs[j].size) ?
- bufs[j].size : size;
+ e_dma_addr = dma_addr;
+ e_len = (size > buf_sz) ? buf_sz : size;
}
to->u.s.len[i % 4] = rte_cpu_to_be_16(e_len);