[dpdk-dev] [PATCH 1/3] lib: fix shifting 32 bits signed variable 31 times

[dpdk-dev] [PATCH 1/3] lib: fix shifting 32 bits signed variable 31 times

[Ferruh Yigit]

Fix cppcheck warning by marking variable as unsigned.

Fixes: dc276b5780c2 ("acl: new library")
Fixes: 986ff526fb84 ("net: add CRC computation API")
Cc: stable@dpdk.org

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
 lib/librte_acl/acl_gen.c     | 2 +-
 lib/librte_net/rte_net_crc.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/librte_acl/acl_gen.c b/lib/librte_acl/acl_gen.c
index bed66be08..35a0140b4 100644
--- a/lib/librte_acl/acl_gen.c
+++ b/lib/librte_acl/acl_gen.c
@@ -163,7 +163,7 @@ acl_count_sequential_groups(struct rte_acl_bitset *bits, int zero_one)
 
 	for (n = QRANGE_MIN; n < UINT8_MAX + 1; n++) {
 		if (bits->bits[n / (sizeof(bits_t) * 8)] &
-				(1 << (n % (sizeof(bits_t) * 8)))) {
+				(1U << (n % (sizeof(bits_t) * 8)))) {
 			if (zero_one == 1 && last_bit != 1)
 				ranges++;
 			last_bit = 1;
diff --git a/lib/librte_net/rte_net_crc.c b/lib/librte_net/rte_net_crc.c
index 73ac3a959..dca0830e2 100644
--- a/lib/librte_net/rte_net_crc.c
+++ b/lib/librte_net/rte_net_crc.c
@@ -69,8 +69,8 @@ reflect_32bits(uint32_t val)
 	uint32_t i, res = 0;
 
 	for (i = 0; i < 32; i++)
-		if ((val & (1 << i)) != 0)
-			res |= (uint32_t)(1 << (31 - i));
+		if ((val & (1U << i)) != 0)
+			res |= (uint32_t)(1U << (31 - i));
 
 	return res;
 }
-- 
2.17.2

[dpdk-dev] [PATCH 2/3] service: fix possible NULL access

[Ferruh Yigit]

Fixes: 21698354c832 ("service: introduce service cores concept")
Cc: stable@dpdk.org

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
 lib/librte_eal/common/rte_service.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/librte_eal/common/rte_service.c b/lib/librte_eal/common/rte_service.c
index 8767c7225..0f3695c4b 100644
--- a/lib/librte_eal/common/rte_service.c
+++ b/lib/librte_eal/common/rte_service.c
@@ -795,6 +795,9 @@ rte_service_dump_one(FILE *f, struct rte_service_spec_impl *s,
 		return;
 	}
 
+	if (f == NULL)
+		return;
+
 	fprintf(f, "  %s: stats %d\tcalls %"PRIu64"\tcycles %"
 			PRIu64"\tavg: %"PRIu64"\n",
 			s->spec.name, service_stats_enabled(s), s->calls,
-- 
2.17.2

Re: [dpdk-dev] [PATCH 2/3] service: fix possible NULL access

[Van Haaren, Harry]

> -----Original Message-----
> From: Yigit, Ferruh
> Sent: Saturday, October 27, 2018 6:09 PM
> To: Van Haaren, Harry <harry.van.haaren@intel.com>
> Cc: dev@dpdk.org; Yigit, Ferruh <ferruh.yigit@intel.com>; stable@dpdk.org
> Subject: [PATCH 2/3] service: fix possible NULL access
> 
> Fixes: 21698354c832 ("service: introduce service cores concept")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
> ---

Acked-by: Harry van Haaren <harry.van.haaren@intel.com>

[dpdk-dev] [PATCH 3/3] vhost: fix possible out of bound access

[Ferruh Yigit]

Fixes: d7280c9fffcb ("vhost: support selective datapath")
Cc: stable@dpdk.org

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
 lib/librte_vhost/vdpa.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/librte_vhost/vdpa.c b/lib/librte_vhost/vdpa.c
index c2c5dff1d..e7d849ee0 100644
--- a/lib/librte_vhost/vdpa.c
+++ b/lib/librte_vhost/vdpa.c
@@ -63,6 +63,9 @@ rte_vdpa_register_device(struct rte_vdpa_dev_addr *addr,
 			break;
 	}
 
+	if (i == MAX_VHOST_DEVICE)
+		return -1;
+
 	sprintf(device_name, "vdpa-dev-%d", i);
 	dev = rte_zmalloc(device_name, sizeof(struct rte_vdpa_device),
 			RTE_CACHE_LINE_SIZE);
-- 
2.17.2

Re: [dpdk-dev] [PATCH 3/3] vhost: fix possible out of bound access

[Maxime Coquelin]

On 10/28/18 2:08 AM, Ferruh Yigit wrote:
> Fixes: d7280c9fffcb ("vhost: support selective datapath")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
> ---
>   lib/librte_vhost/vdpa.c | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/lib/librte_vhost/vdpa.c b/lib/librte_vhost/vdpa.c
> index c2c5dff1d..e7d849ee0 100644
> --- a/lib/librte_vhost/vdpa.c
> +++ b/lib/librte_vhost/vdpa.c
> @@ -63,6 +63,9 @@ rte_vdpa_register_device(struct rte_vdpa_dev_addr *addr,
>   			break;
>   	}
>   
> +	if (i == MAX_VHOST_DEVICE)
> +		return -1;
> +
>   	sprintf(device_name, "vdpa-dev-%d", i);
>   	dev = rte_zmalloc(device_name, sizeof(struct rte_vdpa_device),
>   			RTE_CACHE_LINE_SIZE);
> 

Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>

Thanks,
Maxime

Re: [dpdk-dev] [PATCH 1/3] lib: fix shifting 32 bits signed variable 31 times

[Thomas Monjalon]

28/10/2018 02:08, Ferruh Yigit:
> Fix cppcheck warning by marking variable as unsigned.
> 
> Fixes: dc276b5780c2 ("acl: new library")
> Fixes: 986ff526fb84 ("net: add CRC computation API")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>

Series applied, thanks