| Message ID | 20210112100637.747-1-thunder.leizhen@huawei.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | spi: cadence-quadspi: Fix a compilation warning for 64-bit platform | expand |
On Tue, Jan 12, 2021 at 06:06:36PM +0800, Zhen Lei wrote: > This patch is based on the latest linux-next. So the Fixes commit-id > maybe changed when it merged int v5.12-rc1. For details about the problem > analysis, see the patch description. The auxiliary information is listed here. Please don't send cover letters for single patches, if there is anything that needs saying put it in the changelog of the patch or after the --- if it's administrative stuff. This reduces mail volume and ensures that any important information is recorded in the changelog rather than being lost.
This patch is based on the latest linux-next. So the Fixes commit-id maybe changed when it merged int v5.12-rc1. For details about the problem analysis, see the patch description. The auxiliary information is listed here. 1) the type of size_t on 32-bit and 64-bit platforms include/uapi/asm-generic/posix_types.h: typedef unsigned long __kernel_ulong_t; #if __BITS_PER_LONG != 64 typedef unsigned int __kernel_size_t; #else typedef __kernel_ulong_t __kernel_size_t; #endif include/linux/types.h: typedef __kernel_size_t size_t; 2) The compilation warning information on arm64: In file included from ./include/linux/kernel.h:14, from ./include/linux/clk.h:13, from drivers/spi/spi-cadence-quadspi.c:9: drivers/spi/spi-cadence-quadspi.c: In function ‘cqspi_direct_read_execute’: ./include/linux/minmax.h:18:28: warning: comparison of distinct pointer types lacks a cast 18 | (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1))) | ^~ ./include/linux/minmax.h:32:4: note: in expansion of macro ‘__typecheck’ 32 | (__typecheck(x, y) && __no_side_effects(x, y)) | ^~~~~~~~~~~ ./include/linux/minmax.h:42:24: note: in expansion of macro ‘__safe_cmp’ 42 | __builtin_choose_expr(__safe_cmp(x, y), \ | ^~~~~~~~~~ ./include/linux/minmax.h:58:19: note: in expansion of macro ‘__careful_cmp’ 58 | #define max(x, y) __careful_cmp(x, y, >) | ^~~~~~~~~~~~~ drivers/spi/spi-cadence-quadspi.c:1153:24: note: in expansion of macro ‘max’ 1153 | msecs_to_jiffies(max(len, 500U)))) { | ^~~ Zhen Lei (1): spi: cadence-quadspi: Fix a compilation warning for 64-bit platform drivers/spi/spi-cadence-quadspi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)