Eric Lee / smarc-fsl-linux-kernel

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Commit 7cc34fd028ef35b12fec0fa9268c37c099d33bd2

Authored by Alan Cox
Committed by Greg Kroah-Hartman
1 parent 25c3cdf80c
Exists in master and in 39 other branches 8mp-imx_5.4.70_2.3.0, 8qm-imx_5.4.70_2.3.0, emb_imx_lf-5.15.y, emb_lf-6.1.y, imx_3.0.35_4.1.0, imx_3.10.17_1.0.1_ga, imx_3.10.53_1.1.0_ga, imx_3.14.28_1.0.0_ga, imx_4.1.15_1.0.0_ga, pitx_8mp_lf-5.10.y, rt-smarc-imx_4.1.15_1.0.0_ga, rt_linux_5.15.71, smarc-8m-android-11.0.0_2.0.0, smarc-imx6_4.14.98_2.0.0_ga, smarc-imx6_4.9.88_2.0.0_ga, smarc-imx7_4.14.98_2.0.0_ga, smarc-imx7_4.9.11_1.0.0_ga, smarc-imx7_4.9.88_2.0.0_ga, smarc-imx_3.10.53_1.1.0_ga, smarc-imx_3.14.28_1.0.0_ga, smarc-imx_4.1.15_1.0.0_ga, smarc-imx_4.9.11_1.0.0_ga, smarc-imx_4.9.51_imx8m_ga, smarc-imx_4.9.88_2.0.0_ga, smarc-m6.0.1_2.1.0-ga, smarc-n7.1.2_2.0.0-ga, smarc-rel_imx_4.1.15_1.2.0_ga, smarc_8m_00d0_imx_4.14.98_2.0.0_ga, smarc_8m_imx_4.14.78_1.0.0_ga, smarc_8m_imx_4.14.98_2.0.0_ga, smarc_8m_imx_4.19.35_1.1.0, smarc_8mm_imx_4.14.78_1.0.0_ga, smarc_8mm_imx_4.14.98_2.0.0_ga, smarc_8mm_imx_4.19.35_1.1.0, smarc_8mm_imx_5.4.24_2.1.0, smarc_8mp_lf-5.10.y, smarc_8mq_imx_5.4.24_2.1.0, smarc_8mq_lf-5.10.y, smarc_imx_lf-5.15.y

epca: Kill the big kernel lock 

The lock is no longer needed for wait until sent paths so this can go

Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Showing 1 changed file with 1 additions and 3 deletions Side-by-side Diff

... ... @@ -36,7 +36,7 @@
36 36 #include <linux/ctype.h>
37 37 #include <linux/tty.h>
38 38 #include <linux/tty_flip.h>
39   -#include <linux/smp_lock.h>
  39 +#include <linux/slab.h>
40 40 #include <linux/ioport.h>
41 41 #include <linux/interrupt.h>
42 42 #include <linux/uaccess.h>
... ... @@ -2105,7 +2105,6 @@
2105 2105 break;
2106 2106 case DIGI_SETAW:
2107 2107 case DIGI_SETAF:
2108   - lock_kernel();
2109 2108 if (cmd == DIGI_SETAW) {
2110 2109 /* Setup an event to indicate when the transmit
2111 2110 buffer empties */
... ... @@ -2118,7 +2117,6 @@
2118 2117 if (tty->ldisc->ops->flush_buffer)
2119 2118 tty->ldisc->ops->flush_buffer(tty);
2120 2119 }
2121   - unlock_kernel();
2122 2120 /* Fall Thru */
2123 2121 case DIGI_SETA:
2124 2122 if (copy_from_user(&ch->digiext, argp, sizeof(digi_t)))