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Message-ID: <YZOmQf6PM+SXiTHX@ls3530>
Date: Tue, 16 Nov 2021 13:38:25 +0100
From: Helge Deller <deller@....de>
To: Chas Williams <3chas3@...il.com>,
linux-atm-general@...ts.sourceforge.net, netdev@...r.kernel.org
Cc: parisc-linux@...r.kernel.org
Subject: [PATCH] atm: firestream: avoid conversion error during build
Although the firestream driver isn't relevant for the parisc
architecture, but it generates this compile error when CONFIG_TEST is
defined:
drivers/atm/firestream.c: In function ‘top_off_fp’:
arch/parisc/include/asm/io.h:8:25: error: conversion from ‘long unsigned int’ to ‘u32’ {aka ‘unsigned int’} changes value
from ‘18446744072635809792’ to ‘3221225472’ [-Werror=overflow]
drivers/atm/firestream.c:1494:29: note: in expansion of macro ‘virt_to_bus’
ne->next = virt_to_bus (NULL);
ne->next is of type u32, so this patch avoids the error by casting
the return value of virt_to_bus() to u32.
Signed-off-by: Helge Deller <deller@....de>
---
diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c
index 3bc3c314a467..8148a4ea194c 100644
--- a/drivers/atm/firestream.c
+++ b/drivers/atm/firestream.c
@@ -1491,7 +1491,7 @@ static void top_off_fp (struct fs_dev *dev, struct freepool *fp,
skb, ne, skb->data, skb->head);
n++;
ne->flags = FP_FLAGS_EPI | fp->bufsize;
- ne->next = virt_to_bus (NULL);
+ ne->next = (u32)virt_to_bus (NULL);
ne->bsa = virt_to_bus (skb->data);
ne->aal_bufsize = fp->bufsize;
ne->skb = skb;
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