When compiling with DEBUG=1 an error fs/fat/fat_write.c:831: undefined reference to `__aeabi_ldivmod' occurred.

We should use do_div() instead of the modulus operator.

filesize and cur_pos cannot be negative. So let's use u64 to avoid warnings.

Fixes: cb8af8af5ba0 ("fs: fat: support write with non-zero offset") Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de --- fs/fat/fat_write.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/fat/fat_write.c b/fs/fat/fat_write.c index 3272412ca9..852f874e58 100644 --- a/fs/fat/fat_write.c +++ b/fs/fat/fat_write.c @@ -696,11 +696,11 @@ static int set_contents(fsdata *mydata, dir_entry *dentptr, loff_t pos, __u8 *buffer, loff_t maxsize, loff_t *gotsize) { - loff_t filesize; unsigned int bytesperclust = mydata->clust_size * mydata->sect_size; __u32 curclust = START(dentptr); __u32 endclust = 0, newclust = 0; - loff_t cur_pos, offset, actsize, wsize; + u64 cur_pos, filesize; + loff_t offset, actsize, wsize;

*gotsize = 0; filesize = pos + maxsize; @@ -828,7 +828,7 @@ set_contents(fsdata *mydata, dir_entry *dentptr, loff_t pos, __u8 *buffer,

curclust = endclust; filesize -= cur_pos; - assert(!(cur_pos % bytesperclust)); + assert(!do_div(cur_pos, bytesperclust));

set_clusters: /* allocate and write */