From dbcc3cd58083521d77f0e43db615bca2c17b0dbf Mon Sep 17 00:00:00 2001 From: Vova Sharaienko Date: Mon, 29 Jun 2026 22:37:58 +0000 Subject: [PATCH] dma-coherent: use KiB in DMA allocation logs Update DMA reserved memory pool allocation log messages to display sizes in KiB instead of MiB. Using MiB caused allocations less than 1 MiB to be logged as 0 MiB due to integer truncation. KiB provides better precision for smaller memory regions specified in the Device Tree. Signed-off-by: Vova Sharaienko Signed-off-by: Marek Szyprowski Link: https://lore.kernel.org/r/20260629223759.2637162-1-sharaienko@google.com --- kernel/dma/coherent.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/kernel/dma/coherent.c b/kernel/dma/coherent.c index 480dd1766ece..5e005e0679f8 100644 --- a/kernel/dma/coherent.c +++ b/kernel/dma/coherent.c @@ -69,8 +69,8 @@ static struct dma_coherent_mem *dma_init_coherent_memory(phys_addr_t phys_addr, kfree(dma_mem); out_unmap_membase: memunmap(mem_base); - pr_err("Reserved memory: failed to init DMA memory pool at %pa, size %zd MiB\n", - &phys_addr, size / SZ_1M); + pr_err("Reserved memory: failed to init DMA memory pool at %pa, size %zu KiB\n", + &phys_addr, size / SZ_1K); return ERR_PTR(-ENOMEM); } @@ -384,8 +384,8 @@ static int __init rmem_dma_setup(unsigned long node, struct reserved_mem *rmem) } #endif - pr_info("Reserved memory: created DMA memory pool at %pa, size %ld MiB\n", - &rmem->base, (unsigned long)rmem->size / SZ_1M); + pr_info("Reserved memory: created DMA memory pool at %pa, size %llu KiB\n", + &rmem->base, (unsigned long long)(rmem->size / SZ_1K)); return 0; }