diff options
| author |   Alexander Lobakin <alobakin@marvell.com> | 2020-07-06 18:38:19 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-07-06 13:18:56 -0700 |
| commit | 5ab903418ad14732131df0af0d63f19b73e377ae (patch) | |
| tree | 7a9c443c1b8a965352883cc3ad620603d6282762 /include/linux/qed | |
| parent | net: qed: use ptr shortcuts to dedup field accessing in some parts (diff) | |
| download | linux-dev-5ab903418ad14732131df0af0d63f19b73e377ae.tar.xz linux-dev-5ab903418ad14732131df0af0d63f19b73e377ae.zip | |
net: qed: sanitize BE/LE data processing
Current code assumes that both host and device operates in Little Endian
in lots of places. While this is true for x86 platform, this doesn't mean
we should not care about this.
This commit addresses all parts of the code that were pointed out by sparse
checker. All operations with restricted (__be*/__le*) types are now
protected with explicit from/to CPU conversions, even if they're noops on
common setups.
I'm sure there are more such places, but this implies a deeper code
investigation, and is a subject for future works.
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/qed')
| -rw-r--r-- | include/linux/qed/qed_if.h | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/include/linux/qed/qed_if.h b/include/linux/qed/qed_if.h index 5ca081cd2ed9..90e1060da02b 100644 --- a/include/linux/qed/qed_if.h +++ b/include/linux/qed/qed_if.h @@ -1403,16 +1403,15 @@ static inline void qed_sb_ack(struct qed_sb_info *sb_info, enum igu_int_cmd int_cmd, u8 upd_flg) { - struct igu_prod_cons_update igu_ack = { 0 }; + u32 igu_ack; - igu_ack.sb_id_and_flags = - ((sb_info->sb_ack << IGU_PROD_CONS_UPDATE_SB_INDEX_SHIFT) | - (upd_flg << IGU_PROD_CONS_UPDATE_UPDATE_FLAG_SHIFT) | - (int_cmd << IGU_PROD_CONS_UPDATE_ENABLE_INT_SHIFT) | - (IGU_SEG_ACCESS_REG << - IGU_PROD_CONS_UPDATE_SEGMENT_ACCESS_SHIFT)); + igu_ack = ((sb_info->sb_ack << IGU_PROD_CONS_UPDATE_SB_INDEX_SHIFT) | + (upd_flg << IGU_PROD_CONS_UPDATE_UPDATE_FLAG_SHIFT) | + (int_cmd << IGU_PROD_CONS_UPDATE_ENABLE_INT_SHIFT) | + (IGU_SEG_ACCESS_REG << + IGU_PROD_CONS_UPDATE_SEGMENT_ACCESS_SHIFT)); - DIRECT_REG_WR(sb_info->igu_addr, igu_ack.sb_id_and_flags); + DIRECT_REG_WR(sb_info->igu_addr, igu_ack); /* Both segments (interrupts & acks) are written to same place address; * Need to guarantee all commands will be received (in-order) by HW. |