Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.8 029/124] gpiolib: Disable compat ->read() code in UML case | Date | Mon, 12 Oct 2020 15:30:33 +0200 |
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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
commit 47e538d86d5776ac8152146c3ed3d22326243190 upstream.
It appears that UML (arch/um) has no compat.h header defined and hence can't compile a recently provided piece of code in GPIO library.
Disable compat ->read() code in UML case to avoid compilation errors.
While at it, use pattern which is already being used in the kernel elsewhere.
Fixes: 5ad284ab3a01 ("gpiolib: Fix line event handling in syscall compatible mode") Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20201005131044.87276-1-andriy.shevchenko@linux.intel.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/gpio/gpiolib.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -838,7 +838,7 @@ static __poll_t lineevent_poll(struct fi static ssize_t lineevent_get_size(void) { -#ifdef __x86_64__ +#if defined(CONFIG_X86_64) && !defined(CONFIG_UML) /* i386 has no padding after 'id' */ if (in_ia32_syscall()) { struct compat_gpioeevent_data {
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