The patch introducing support for dynamic sector sizes changed the types used in some divisions, resulting in the compiler attempting to use libgcc helpers (__aeabi_ldivmod). Replace these divisions with calls to lldiv() to handle this correctly.
Fixes: 74e56e0c5065 ("usb: gadget: UMS: support multiple sector sizes") Signed-off-by: Caleb Connolly <caleb.conno...@linaro.org> --- Cc: Mattijs Korpershoek <mkorpersh...@baylibre.com> --- drivers/usb/gadget/f_mass_storage.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c index d880928044f4..ef90c7ec7fb5 100644 --- a/drivers/usb/gadget/f_mass_storage.c +++ b/drivers/usb/gadget/f_mass_storage.c @@ -239,8 +239,9 @@ /* #define VERBOSE_DEBUG */ /* #define DUMP_MSGS */ #include <config.h> +#include <div64.h> #include <hexdump.h> #include <log.h> #include <malloc.h> #include <common.h> @@ -768,10 +769,10 @@ static int do_read(struct fsg_common *common) } /* Perform the read */ rc = ums[common->lun].read_sector(&ums[common->lun], - file_offset / curlun->blksize, - amount / curlun->blksize, + lldiv(file_offset, curlun->blksize), + lldiv(amount, curlun->blksize), (char __user *)bh->buf); if (!rc) return -EIO; @@ -942,10 +943,10 @@ static int do_write(struct fsg_common *common) amount = bh->outreq->actual; /* Perform the write */ rc = ums[common->lun].write_sector(&ums[common->lun], - file_offset / curlun->blksize, - amount / curlun->blksize, + lldiv(file_offset, curlun->blksize), + lldiv(amount, curlun->blksize), (char __user *)bh->buf); if (!rc) return -EIO; nwritten = rc * curlun->blksize; @@ -1058,10 +1059,10 @@ static int do_verify(struct fsg_common *common) } /* Perform the read */ rc = ums[common->lun].read_sector(&ums[common->lun], - file_offset / curlun->blksize, - amount / curlun->blksize, + lldiv(file_offset, curlun->blksize), + lldiv(amount, curlun->blksize), (char __user *)bh->buf); if (!rc) return -EIO; nread = rc * curlun->blksize; -- 2.44.0