iommu: Suppress empty whitespaces in prints

If IOMMU_CMD_LINE_DMA_API or IOMMU_CMD_LINE_STRICT are not set in
iommu_cmd_line, we will be emitting a whitespace before the newline.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20230509191049.1752259-1-f.fainelli@gmail.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 7078bf4..10eb24d 100644 (file)
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -176,16 +176,16 @@ static int __init iommu_subsys_init(void)
        if (!iommu_default_passthrough() && !iommu_dma_strict)
                iommu_def_domain_type = IOMMU_DOMAIN_DMA_FQ;
 
-       pr_info("Default domain type: %s %s\n",
+       pr_info("Default domain type: %s%s\n",
                iommu_domain_type_str(iommu_def_domain_type),
                (iommu_cmd_line & IOMMU_CMD_LINE_DMA_API) ?
-                       "(set via kernel command line)" : "");
+                       " (set via kernel command line)" : "");
 
        if (!iommu_default_passthrough())
-               pr_info("DMA domain TLB invalidation policy: %s mode %s\n",
+               pr_info("DMA domain TLB invalidation policy: %s mode%s\n",
                        iommu_dma_strict ? "strict" : "lazy",
                        (iommu_cmd_line & IOMMU_CMD_LINE_STRICT) ?
-                               "(set via kernel command line)" : "");
+                               " (set via kernel command line)" : "");
 
        nb = kcalloc(ARRAY_SIZE(iommu_buses), sizeof(*nb), GFP_KERNEL);
        if (!nb)