This is a note to let you know that I've just added the patch titled remoteproc: qcom: pil_info: avoid 64-bit division to the 5.11-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: remoteproc-qcom-pil_info-avoid-64-bit-division.patch and it can be found in the queue-5.11 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 6f718d2c95d9719f88469e1215256dec7c953582 Author: Arnd Bergmann <arnd@xxxxxxxx> Date: Sun Jan 3 14:56:12 2021 +0100 remoteproc: qcom: pil_info: avoid 64-bit division [ Upstream commit 7029e783027706b427bbfbdf8558252c1dac6fa0 ] On 32-bit machines with 64-bit resource_size_t, the driver causes a link failure because of the 64-bit division: arm-linux-gnueabi-ld: drivers/remoteproc/qcom_pil_info.o: in function `qcom_pil_info_store': qcom_pil_info.c:(.text+0x1ec): undefined reference to `__aeabi_uldivmod' Add a cast to an u32 to avoid this. If the resource exceeds 4GB, there are bigger problems. Fixes: 549b67da660d ("remoteproc: qcom: Introduce helper to store pil info in IMEM") Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Link: https://lore.kernel.org/r/20210103135628.3702427-1-arnd@xxxxxxxxxx Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/remoteproc/qcom_pil_info.c b/drivers/remoteproc/qcom_pil_info.c index 5521c4437ffa..7c007dd7b200 100644 --- a/drivers/remoteproc/qcom_pil_info.c +++ b/drivers/remoteproc/qcom_pil_info.c @@ -56,7 +56,7 @@ static int qcom_pil_info_init(void) memset_io(base, 0, resource_size(&imem)); _reloc.base = base; - _reloc.num_entries = resource_size(&imem) / PIL_RELOC_ENTRY_SIZE; + _reloc.num_entries = (u32)resource_size(&imem) / PIL_RELOC_ENTRY_SIZE; return 0; }