Messages in this thread Patch in this message | | | From | Bo Liu <> | Subject | [PATCH] bus: fsl-mc: dprc: use strscpy() to instead of strncpy() | Date | Tue, 17 Jan 2023 20:28:06 -0500 |
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The implementation of strscpy() is more robust and safer. That's now the recommended way to copy NUL-terminated strings.
Signed-off-by: Bo Liu <liubo03@inspur.com> --- drivers/bus/fsl-mc/dprc.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-)
diff --git a/drivers/bus/fsl-mc/dprc.c b/drivers/bus/fsl-mc/dprc.c index d129338b8bc0..d095d1e044e7 100644 --- a/drivers/bus/fsl-mc/dprc.c +++ b/drivers/bus/fsl-mc/dprc.c @@ -450,10 +450,8 @@ int dprc_get_obj(struct fsl_mc_io *mc_io, obj_desc->ver_major = le16_to_cpu(rsp_params->version_major); obj_desc->ver_minor = le16_to_cpu(rsp_params->version_minor); obj_desc->flags = le16_to_cpu(rsp_params->flags); - strncpy(obj_desc->type, rsp_params->type, 16); - obj_desc->type[15] = '\0'; - strncpy(obj_desc->label, rsp_params->label, 16); - obj_desc->label[15] = '\0'; + strscpy(obj_desc->type, rsp_params->type, 16); + strscpy(obj_desc->label, rsp_params->label, 16); return 0; } EXPORT_SYMBOL_GPL(dprc_get_obj); @@ -491,8 +489,7 @@ int dprc_set_obj_irq(struct fsl_mc_io *mc_io, cmd_params->irq_addr = cpu_to_le64(irq_cfg->paddr); cmd_params->irq_num = cpu_to_le32(irq_cfg->irq_num); cmd_params->obj_id = cpu_to_le32(obj_id); - strncpy(cmd_params->obj_type, obj_type, 16); - cmd_params->obj_type[15] = '\0'; + strscpy(cmd_params->obj_type, obj_type, 16); /* send command to mc*/ return mc_send_command(mc_io, &cmd); @@ -564,8 +561,7 @@ int dprc_get_obj_region(struct fsl_mc_io *mc_io, cmd_params = (struct dprc_cmd_get_obj_region *)cmd.params; cmd_params->obj_id = cpu_to_le32(obj_id); cmd_params->region_index = region_index; - strncpy(cmd_params->obj_type, obj_type, 16); - cmd_params->obj_type[15] = '\0'; + strscpy(cmd_params->obj_type, obj_type, 16); /* send command to mc*/ err = mc_send_command(mc_io, &cmd); -- 2.27.0
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