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| author | Liming Sun <limings@nvidia.com> | 2023-10-12 19:02:35 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-11-08 17:26:47 +0100 |
| commit | bbc926199321dc4d733bfd09fcb47cf8e885a1eb (patch) | |
| tree | c46381829b6a8b30054d225d42708cee4bc3bd5c | |
| parent | db4416ea3a5d66f83a235e65a7106981b6b36b6c (diff) | |
| download | aa-bbc926199321dc4d733bfd09fcb47cf8e885a1eb.tar.gz | |
platform/mellanox: mlxbf-tmfifo: Fix a warning message
[ Upstream commit 99c09c985e5973c8f0ad976ebae069548dd86f12 ]
This commit fixes the smatch static checker warning in function
mlxbf_tmfifo_rxtx_word() which complains data not initialized at
line 634 when IS_VRING_DROP() is TRUE.
Signed-off-by: Liming Sun <limings@nvidia.com>
Link: https://lore.kernel.org/r/20231012230235.219861-1-limings@nvidia.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/platform/mellanox/mlxbf-tmfifo.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/drivers/platform/mellanox/mlxbf-tmfifo.c b/drivers/platform/mellanox/mlxbf-tmfifo.c index 194f3205e55974..767f4406e55f11 100644 --- a/drivers/platform/mellanox/mlxbf-tmfifo.c +++ b/drivers/platform/mellanox/mlxbf-tmfifo.c @@ -588,24 +588,25 @@ static void mlxbf_tmfifo_rxtx_word(struct mlxbf_tmfifo_vring *vring, if (vring->cur_len + sizeof(u64) <= len) { /* The whole word. */ - if (!IS_VRING_DROP(vring)) { - if (is_rx) + if (is_rx) { + if (!IS_VRING_DROP(vring)) memcpy(addr + vring->cur_len, &data, sizeof(u64)); - else - memcpy(&data, addr + vring->cur_len, - sizeof(u64)); + } else { + memcpy(&data, addr + vring->cur_len, + sizeof(u64)); } vring->cur_len += sizeof(u64); } else { /* Leftover bytes. */ - if (!IS_VRING_DROP(vring)) { - if (is_rx) + if (is_rx) { + if (!IS_VRING_DROP(vring)) memcpy(addr + vring->cur_len, &data, len - vring->cur_len); - else - memcpy(&data, addr + vring->cur_len, - len - vring->cur_len); + } else { + data = 0; + memcpy(&data, addr + vring->cur_len, + len - vring->cur_len); } vring->cur_len = len; } |