On Fri, Nov 13, 2020 at 06:14:00PM +0100, Julia Lawall wrote: > From: kernel test robot <lkp@xxxxxxxxx> > > Condition !A || A && B is equivalent to !A || B. A similar change was submitted and discussed some time ago: https://patchwork.kernel.org/project/linux-crypto/patch/78b1532c-f8bf-48e4-d0a7-30ea0137d408@xxxxxxxxxx/ The change simplifies the logic but makes the code less readable. I added a comment to clarify it. Regards, -- Giovanni ----8<---- From: kernel test robot <lkp@xxxxxxxxx> Date: Fri, 13 Nov 2020 18:14:00 +0100 Subject: [PATCH] crypto: qat - fix excluded_middle.cocci warnings Condition !A || A && B is equivalent to !A || B. Generated by: scripts/coccinelle/misc/excluded_middle.cocci Fixes: b76f0ea01312 ("coccinelle: misc: add excluded_middle.cocci script") CC: Denis Efremov <efremov@xxxxxxxxx> Reported-by: kernel test robot <lkp@xxxxxxxxx> Signed-off-by: kernel test robot <lkp@xxxxxxxxx> Signed-off-by: Julia Lawall <julia.lawall@xxxxxxxx> Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@xxxxxxxxx> --- drivers/crypto/qat/qat_common/adf_dev_mgr.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/crypto/qat/qat_common/adf_dev_mgr.c b/drivers/crypto/qat/qat_common/adf_dev_mgr.c index 29dc2e3d38ff..4c752eed10fe 100644 --- a/drivers/crypto/qat/qat_common/adf_dev_mgr.c +++ b/drivers/crypto/qat/qat_common/adf_dev_mgr.c @@ -151,8 +151,8 @@ int adf_devmgr_add_dev(struct adf_accel_dev *accel_dev, mutex_lock(&table_lock); atomic_set(&accel_dev->ref_count, 0); - /* PF on host or VF on guest */ - if (!accel_dev->is_vf || (accel_dev->is_vf && !pf)) { + /* PF on host or VF on guest - optimized to remove redundant is_vf */ + if (!accel_dev->is_vf || !pf) { struct vf_id_map *map; list_for_each(itr, &accel_table) { @@ -248,7 +248,8 @@ void adf_devmgr_rm_dev(struct adf_accel_dev *accel_dev, struct adf_accel_dev *pf) { mutex_lock(&table_lock); - if (!accel_dev->is_vf || (accel_dev->is_vf && !pf)) { + /* PF on host or VF on guest - optimized to remove redundant is_vf */ + if (!accel_dev->is_vf || !pf) { id_map[accel_dev->accel_id] = 0; num_devices--; } else if (accel_dev->is_vf && pf) { -- 2.28.0
