This is a note to let you know that I've just added the patch titled

sound/oss/dmasound: fix build when drivers are mixed =y/=m

to the 5.10-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summ...

The filename of the patch is: sound-oss-dmasound-fix-build-when-drivers-are-mixed-y-m.patch and it can be found in the queue-5.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From 9dd7c46346ca4390f84a7ea9933005eb1b175c15 Mon Sep 17 00:00:00 2001 From: Randy Dunlap rdunlap@infradead.org Date: Tue, 5 Apr 2022 16:41:18 -0700 Subject: sound/oss/dmasound: fix build when drivers are mixed =y/=m

From: Randy Dunlap rdunlap@infradead.org

commit 9dd7c46346ca4390f84a7ea9933005eb1b175c15 upstream.

When CONFIG_DMASOUND_ATARI=m and CONFIG_DMASOUND_Q40=y (or vice versa), dmasound_core.o can be built without dmasound_deinit() being defined, causing a build error:

ERROR: modpost: "dmasound_deinit" [sound/oss/dmasound/dmasound_atari.ko] undefined!

Modify dmasound_core.c and dmasound.h so that dmasound_deinit() is always available.

The mixed modes (=y/=m) also mean that several variables and structs have to be declared in all cases.

Suggested-by: Arnd Bergmann arnd@arndb.de Suggested-by: Geert Uytterhoeven geert@linux-m68k.org Signed-off-by: Randy Dunlap rdunlap@infradead.org Reported-by: kernel test robot lkp@intel.com Link: lore.kernel.org/r/202204032138.EFT9qGEd-lkp@intel.com Cc: Geert Uytterhoeven geert@linux-m68k.org Cc: Jaroslav Kysela perex@perex.cz Cc: Takashi Iwai tiwai@suse.com Cc: alsa-devel@alsa-project.org Link: https://lore.kernel.org/r/20220405234118.24830-1-rdunlap@infradead.org Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- sound/oss/dmasound/dmasound.h | 6 ------ sound/oss/dmasound/dmasound_core.c | 24 +----------------------- 2 files changed, 1 insertion(+), 29 deletions(-)

--- a/sound/oss/dmasound/dmasound.h +++ b/sound/oss/dmasound/dmasound.h @@ -88,11 +88,7 @@ static inline int ioctl_return(int __use */

extern int dmasound_init(void); -#ifdef MODULE extern void dmasound_deinit(void); -#else -#define dmasound_deinit() do { } while (0) -#endif

/* description of the set-up applies to either hard or soft settings */

@@ -114,9 +110,7 @@ typedef struct { void *(*dma_alloc)(unsigned int, gfp_t); void (*dma_free)(void *, unsigned int); int (*irqinit)(void); -#ifdef MODULE void (*irqcleanup)(void); -#endif void (*init)(void); void (*silence)(void); int (*setFormat)(int); --- a/sound/oss/dmasound/dmasound_core.c +++ b/sound/oss/dmasound/dmasound_core.c @@ -206,12 +206,10 @@ module_param(writeBufSize, int, 0);

MODULE_LICENSE("GPL");

-#ifdef MODULE static int sq_unit = -1; static int mixer_unit = -1; static int state_unit = -1; static int irq_installed; -#endif /* MODULE */

/* control over who can modify resources shared between play/record */ static fmode_t shared_resource_owner; @@ -391,9 +389,6 @@ static const struct file_operations mixe

static void mixer_init(void) { -#ifndef MODULE - int mixer_unit; -#endif mixer_unit = register_sound_mixer(&mixer_fops, -1); if (mixer_unit < 0) return; @@ -1176,9 +1171,6 @@ static const struct file_operations sq_f static int sq_init(void) { const struct file_operations *fops = &sq_fops; -#ifndef MODULE - int sq_unit; -#endif

sq_unit = register_sound_dsp(fops, -1); if (sq_unit < 0) { @@ -1380,9 +1372,6 @@ static const struct file_operations stat

static int state_init(void) { -#ifndef MODULE - int state_unit; -#endif state_unit = register_sound_special(&state_fops, SND_DEV_STATUS); if (state_unit < 0) return state_unit ; @@ -1400,10 +1389,9 @@ static int state_init(void) int dmasound_init(void) { int res ; -#ifdef MODULE + if (irq_installed) return -EBUSY; -#endif

/* Set up sound queue, /dev/audio and /dev/dsp. */

@@ -1422,9 +1410,7 @@ int dmasound_init(void) printk(KERN_ERR "DMA sound driver: Interrupt initialization failed\n"); return -ENODEV; } -#ifdef MODULE irq_installed = 1; -#endif

printk(KERN_INFO "%s DMA sound driver rev %03d installed\n", dmasound.mach.name, (DMASOUND_CORE_REVISION<<4) + @@ -1438,8 +1424,6 @@ int dmasound_init(void) return 0; }

-#ifdef MODULE - void dmasound_deinit(void) { if (irq_installed) { @@ -1458,8 +1442,6 @@ void dmasound_deinit(void) unregister_sound_dsp(sq_unit); }

-#else /* !MODULE */ - static int dmasound_setup(char *str) { int ints[6], size; @@ -1503,8 +1485,6 @@ static int dmasound_setup(char *str)

__setup("dmasound=", dmasound_setup);

-#endif /* !MODULE */ - /* * Conversion tables */ @@ -1591,9 +1571,7 @@ char dmasound_alaw2dma8[] = {

EXPORT_SYMBOL(dmasound); EXPORT_SYMBOL(dmasound_init); -#ifdef MODULE EXPORT_SYMBOL(dmasound_deinit); -#endif EXPORT_SYMBOL(dmasound_write_sq); EXPORT_SYMBOL(dmasound_catchRadius); #ifdef HAS_8BIT_TABLES

Patches currently in stable-queue which might be from rdunlap@infradead.org are

queue-5.10/sound-oss-dmasound-fix-build-when-drivers-are-mixed-y-m.patch queue-5.10/driver-core-don-t-require-dynamic_debug-for-initcall_debug-probe-timing.patch queue-5.10/ima-allow-fix-uml-builds.patch